Calculator catalogue¶
The full registry: 116 entries comprising 102 active calculators that compute a real result, 11 named-but-unavailable rights-locked stubs (carrying proprietary and unavailable), two rights-review stubs, and one clinical-safety stub (the latter three carry unavailable without proprietary). One row per calculator.
clincalc list prints the same data at any time; clincalc list --tag <tag> filters by tag; clincalc calc <name> --license prints the algorithm's distribution licence for any single entry.
Two kinds of entry
Active entries compute a real score. Their algorithm is either public-domain (implemented from primary literature) or open-source (notably QRISK3 and QFracture, ported from ClinRisk's LGPL-3 source).
Unavailable entries are named on purpose. They appear in clincalc list, but invoking them never returns a score. Confirmed rights-locked entries carry proprietary + unavailable; entries awaiting permission or legal review and the clinical-safety entry carry unavailable without proprietary. Each response preserves the precise reason and alternatives. See Unavailable on principle.
Filtering by tag¶
Every calculator carries one or more tags - specialty (where it is used) and status (proprietary, nhs-mandated, screening, risk, ...). Tags drive the catalogue below, the --tag CLI filter, and the JSON output of clincalc list:
clincalc list --tag cardiology # everything in cardiology
clincalc list --tag primary-care --tag screening # AND - narrows the filter
clincalc list --tag proprietary # the unshippable ones
clincalc tags # enumerate every tag, with counts
The full vocabulary lives in src/tags.rs and is reviewable in one file. New tags are added there only after at least two calculators want one.
Catalogue¶
| Name | Title | What it does | Tags |
|---|---|---|---|
abcd2 |
ABCD2 Score (Stroke Risk after TIA) | 2-day stroke risk after a transient ischaemic attack. Note NICE NG128 advises against using ABCD2 to guide referral urgency. | neurology, emergency, risk |
abpi |
ABPI (Ankle-Brachial Pressure Index) | Ankle-Brachial Pressure Index per leg from ankle and brachial systolic pressures; screens for peripheral arterial disease and informs compression-therapy safety. | primary-care, vascular |
acq |
ACQ (Asthma Control Questionnaire) | Asthma control monitoring (BTS/NICE/SIGN asthma). | respiratory, severity, proprietary, unavailable |
alcohol_units |
Alcohol Units (UK) | Calculates UK alcohol units from drink volume and ABV, with optional weekly tally and alcohol kcal. | primary-care, mental-health |
alvarado |
Alvarado Score (Appendicitis) | MANTRELS score for suspected acute appendicitis (0-10). | emergency, surgery, risk |
amts |
Abbreviated Mental Test Score (AMTS) | Ten-item bedside cognitive screen (0-10); a score below 8 suggests cognitive impairment. | primary-care, geriatrics, neurology, screening |
anion_gap |
Anion Gap | Serum anion gap from sodium, chloride, bicarbonate, optional potassium, and optional albumin correction. | acute-medicine, nephrology |
apache2 |
APACHE II | ICU acute physiology, age, and chronic health severity score (0-71). | intensive-care, severity, prognostic |
apgar |
Apgar Score | Scores one newborn observation set at 1, 5, 10, 15, or 20 minutes. It documents clinical status and response but does not determine initial resuscitation or diagnose asphyxia. | paediatrics, perinatal, severity |
ardsnet_predicted_body_weight |
ARDSNet Predicted Body Weight | Calculates the adult NIH-NHLBI ARDS Network predicted-body-weight scalar from measured height and an explicitly selected historical protocol coefficient branch. It is not actual weight, nutritional ideal weight, adjusted weight, or drug-dosing weight and does not prescribe ventilator settings. | intensive-care, respiratory |
asa_physical_status |
ASA Physical Status | ASA preoperative physical-status classification, with optional emergency suffix. | surgery, severity |
ascvd |
ASCVD Pooled Cohort Equations | ACC/AHA 2013 10-year ASCVD risk estimate for US adults aged 40-79. | primary-care, cardiology, risk |
asrs |
ASRS-v1.1 Six-Question Adult ADHD Screener | Scores six coded adult responses covering the past six months from the authorised form, reporting the classic and continuous methods separately; questionnaire text is not bundled. | primary-care, mental-health, screening |
audit |
AUDIT Alcohol Use Screen | Ten-item WHO alcohol-use screen (0-40); four risk zones from low risk to possible dependence. | primary-care, mental-health, screening |
auditc |
AUDIT-C Alcohol Consumption Screen | Three-item WHO AUDIT consumption subscale (0-12); positive at 4+ (men) or 3+ (women). | primary-care, mental-health, screening |
barthel |
Barthel Index | Activities of daily living score (0-100) from ten functional domains. | geriatrics, severity |
basdai |
BASDAI | Bath Ankylosing Spondylitis Disease Activity Index (0-10). | rheumatology, severity |
binet |
Binet Stage for Chronic Lymphocytic Leukaemia | Derives historical CLL stage A, B, or C from five physical-examination lymphoid areas, haemoglobin, and platelet count. It is not a treatment instruction. | oncology, severity, prognostic |
bmi |
BMI (Body Mass Index) | Body mass index from weight and height, with standard adult category. | primary-care, endocrinology |
bode |
BODE Index (COPD prognosis) | Multidimensional prognostic index in COPD from BMI, FEV1, mMRC dyspnoea, and six-minute walk distance; predicts ~4-year survival. | respiratory, prognostic |
body_adiposity_index |
Body Adiposity Index (BAI) | Legacy weight-free body-fat estimate from height and hip circumference (Bergman 2011), restricted to the external-validation cohort's adult measurement envelope. A 2018 systematic review found wide individual error, systematic overestimation at lower body fat and underestimation at higher body fat, and did not recommend BAI for adult body-fat determination. It is not a measurement, diagnosis, or treatment rule. | primary-care, endocrinology, screening |
body_fat_circumference |
Body Fat % (US Navy Circumference Method) | Estimates body fat percentage from height, waist, neck (and hip for women) using the US Navy / Hodgdon-Beckett regression equations. | primary-care, endocrinology, screening |
body_surface_area |
Body Surface Area (Mosteller) | Calculates body surface area from height and weight using the Mosteller formula. It does not infer dosing or indexing decisions, which remain protocol-specific. | primary-care |
braden |
Braden Scale (Pressure Ulcer Risk) | Predicts pressure ulcer risk across six subscales (sensory perception, moisture, activity, mobility, nutrition, friction/shear). Score 6-23; lower = higher risk. | acute-medicine, geriatrics, screening |
caprini |
Caprini VTE Risk Score | Peri-operative venous thromboembolism (VTE) risk assessment using weighted risk factors. Score 0=very low to ≥5=high. | surgery, vascular, risk |
cat |
CAT (COPD Assessment Test) | Symptom-burden / health-status measure in COPD (8 items, 0-40; GOLD/NICE NG115). | respiratory, severity, proprietary, unavailable |
centor |
Centor / McIsaac Score (Strep Pharyngitis) | Predicts probability of group-A streptococcal pharyngitis to guide antibiotic use and throat swab decisions. | primary-care, infectious-diseases |
cfs |
CFS (Clinical Frailty Scale) | 9-point judgement-based frailty grading in older adults (1 Very Fit to 9 Terminally Ill). | geriatrics, severity, proprietary, unavailable |
cha2ds2_va |
CHA₂DS₂-VA (2024 ESC) | Stroke risk in atrial fibrillation using the 2024 ESC sex-free update (score 0-8). | cardiology, risk |
cha2ds2vasc |
CHA2DS2-VASc Stroke Risk (AF) | Stroke risk in non-valvular atrial fibrillation, guiding anticoagulation (NICE NG196). | cardiology, risk |
chalice |
CHALICE Paediatric Head Injury Rule | Decision rule for CT head in children after head injury: any positive criterion predicts a clinically significant intracranial injury and a CT head scan is recommended (Dunning et al 2006; NICE NG232). | paediatrics, emergency |
charlson |
Charlson Comorbidity Index (CCI) | Predicts 10-year mortality from 19 weighted comorbidities, with optional age adjustment. | primary-care, risk, prognostic |
child_pugh |
Child-Pugh Score (Cirrhosis Severity) | Severity of chronic liver disease from bilirubin, albumin, INR, ascites, and encephalopathy; reports class A/B/C. | hepatology, severity |
ciwa_ar |
CIWA-Ar Alcohol Withdrawal Severity | Quantifies current withdrawal symptoms after alcohol withdrawal has been clinically identified in a reliably communicative patient. It is not diagnostic and does not prescribe medication. | acute-medicine, mental-health, severity |
ckd_risk |
KDIGO CKD risk category (eGFR x ACR heatmap) | Combines the eGFR G-stage and albuminuria A-stage into the KDIGO prognosis risk category (the green/yellow/orange/red heatmap). | primary-care, nephrology, risk |
corrected_calcium |
Albumin-corrected Calcium | Corrects total serum calcium for abnormal albumin using the Payne-style correction. | primary-care, endocrinology |
corrected_sodium |
Hyperglycaemia-corrected Sodium | Estimates expected serum sodium at normoglycaemia in hyperglycaemia (DKA/HHS workup), using the Katz or Hillier correction factor. | endocrinology, acute-medicine |
cows |
Clinical Opiate Withdrawal Scale (COWS) | Quantifies current clinician-assessed findings apparently attributable to opioid withdrawal. It does not independently diagnose withdrawal or determine medication timing or dosage. | acute-medicine, mental-health, severity |
curb65 |
CURB-65 Pneumonia Severity | Severity and 30-day mortality risk in adults with community-acquired pneumonia, guiding place of care (BTS 2009 / NICE NG250). | acute-medicine, respiratory, infectious-diseases, severity |
das28 |
DAS28 (Rheumatoid Arthritis Disease Activity) | Disease Activity Score in 28 joints for rheumatoid arthritis, from tender/swollen joint counts, an ESR or CRP marker, and patient global health. | rheumatology, severity |
duke_iscvid |
2023 Duke-ISCVID Criteria for Infective Endocarditis | Derives the corrected 2023 research case-definition classification of suspected infective endocarditis as definite, possible, or rejected from clinician-asserted evidence. It supplements clinical judgement and is not a screening, diagnosis, exclusion, prognosis, surgery, or antibiotic-treatment rule. | infectious-diseases, cardiology |
cockcroft_gault |
Cockcroft-Gault Creatinine Clearance | Creatinine clearance (CrCl, mL/min) from age, weight, sex, and creatinine. Superseded by CKD-EPI 2021 for CKD staging; retained for renal drug dosing where guidelines cite CrCl. | primary-care, nephrology |
egfr |
eGFR (CKD-EPI 2021) | Estimated glomerular filtration rate from creatinine (race-free CKD-EPI 2021); reports CKD G-stage. | primary-care, nephrology |
ehra |
EHRA AF Symptom Classification | Classifies atrial fibrillation symptom burden (Classes 1, 2a, 2b, 3, 4) to guide rhythm-control decisions. | cardiology |
elf |
ELF (Enhanced Liver Fibrosis test) | Second-line serum biomarker test for liver fibrosis (NICE NG49). | hepatology, screening, proprietary, unavailable |
energy_requirement |
Energy Requirement (BMR/RMR/TDEE) | Adult basal/resting energy estimate using Mifflin-St Jeor, Harris-Benedict original/revised, Schofield, or Cunningham, with optional activity factor and kcal target adjustment. | primary-care, endocrinology |
epds |
Edinburgh Postnatal Depression Scale (EPDS) | Ten-item perinatal depression screen (0-30); >=10 possible, >=13 probable; item 10 flags self-harm risk. | primary-care, mental-health, perinatal, screening |
euroscore2 |
EuroSCORE II (Cardiac Surgery Mortality) | Predicted operative mortality after cardiac surgery from 18 preoperative factors (Nashef 2012). | cardiology, surgery, prognostic |
familial_hypercholesterolaemia |
Familial Hypercholesterolaemia (Simon Broome + DLCN) | Diagnoses familial hypercholesterolaemia using both the Simon Broome (UK) and Dutch Lipid Clinic Network (DLCN) criteria. | primary-care, cardiology, endocrinology, risk |
fat_free_mass_index |
Fat-Free Mass Index (FFMI) | Fat-free mass relative to height from weight, height, and an independently obtained body fat percentage, including the Kouri 1995 normalization to a 1.8 m reference height. The paper's preliminary male-athlete sample maximum is not a diagnostic cut-point, biological limit, or proof of steroid use, and does not establish equivalent interpretation in other populations. | primary-care, endocrinology, musculoskeletal, screening |
fena |
FENa (Fractional Excretion of Sodium) | Differentiates pre-renal from intrinsic renal failure using urine and plasma sodium and creatinine. | acute-medicine, nephrology |
feverpain |
FeverPAIN Score | Five-item score guiding antibiotic prescribing in acute sore throat (validated for adults and children aged 3+). | primary-care, infectious-diseases, respiratory |
fib4 |
FIB-4 Liver Fibrosis Index | Non-invasive screen for advanced liver fibrosis from age, AST, ALT, and platelets (NICE NG49). | primary-care, hepatology, screening |
findrisc |
FINDRISC (Finnish Diabetes Risk Score) | Predicts 10-year risk of type 2 diabetes using 8 lifestyle and clinical items (score 0-26). | primary-care, endocrinology, screening |
fourat |
4AT Rapid Delirium Screening | Rapid bedside screen for delirium and cognitive impairment (four items, score 0-12). | acute-medicine, geriatrics, neurology, screening |
four_ts |
4Ts Score for Heparin-Induced Thrombocytopenia | Estimates HIT pretest probability from four clinician-resolved domains using the standard days 5-10 timing variant. It is not diagnostic and does not autonomously select treatment. | haematology, risk |
free_water_deficit |
Free-water Deficit | Estimates the static free-water deficit in an adult with hypernatraemia using an explicit sodium target and clinician-selected total-body-water fraction. It is not a fluid prescription or correction rate. | acute-medicine, nephrology |
frax |
FRAX (10-year fracture risk) | 10-year probability of osteoporotic and hip fracture (NICE CG146). | endocrinology, musculoskeletal, risk, proprietary, unavailable |
gad7 |
GAD-7 Anxiety Severity | Seven-item generalised anxiety severity score (0-21); a total of 10+ flags likely GAD. | primary-care, mental-health, screening |
gcs |
Glasgow Coma Scale (GCS) | Bedside score (3-15) of conscious level from eye, verbal, and motor response (Teasdale & Jennett 1974); omits the total and band when any component is not testable, per current guidance. | neurology, emergency, acute-medicine, severity |
glasgow_blatchford |
Glasgow-Blatchford Bleeding Score (GBS) | Pre-endoscopy risk assessment at first presentation with acute upper gastrointestinal bleeding; distinguishes NICE's score-0 early-discharge consideration from ACG's score-0-to-1 very-low-risk example without making disposition automatic. | emergency, acute-medicine, risk |
gleason |
Gleason Grade Group (ISUP/WHO) | Gleason score and ISUP/WHO Grade Group (1-5) from the primary and secondary prostate cancer patterns. | oncology, urology |
grace |
GRACE ACS Risk Score (in-hospital mortality) | Point-based GRACE 1.0 score (Granger 2003) estimating in-hospital mortality risk in acute coronary syndrome. | cardiology, acute-medicine, prognostic |
hasbled |
HAS-BLED Bleeding Risk (AF) | Bleeding risk in atrial fibrillation on anticoagulation, used alongside CHA2DS2-VASc (NICE NG196). | cardiology, risk |
heart |
HEART Score (ED Chest Pain) | 6-week MACE risk for emergency department chest pain, guiding discharge versus admission versus early invasive management (Six AJ et al. 2008). | cardiology, emergency, risk |
hinchey |
Modified Hinchey Classification (Wasvary/Kaiser) | Classifies diverticulitis anatomy using the Wasvary modified stages and Kaiser CT operationalisation; preserves fistula/obstruction as separate categories and does not infer purulent versus fecal peritonitis from CT alone. | surgery, acute-medicine, severity |
homa_ir |
HOMA-IR | Calculates the continuous original HOMA1 surrogate estimate from fasting glucose and fasting insulin. It does not apply a universal diagnostic cutoff because values depend on the assay and population. | endocrinology, screening |
ipss |
IPSS - International Prostate Symptom Score | Seven-item lower urinary tract symptom score (0-35) for benign prostatic hyperplasia; bands mild 0-7, moderate 8-19, severe 20-35, with an optional quality-of-life item (0-6). | urology, severity |
isth_overt_dic |
ISTH Overt DIC Score (2025) | Derives the current overt/late-phase DIC score from same-episode measurements in a patient with a recognised DIC-associated underlying disorder. It supports but does not establish or exclude the diagnosis. | acute-medicine, haematology, severity |
jackson_pollock_skinfold |
Jackson-Pollock 3-Site Skinfold Body Fat % | Caliper-derived body-fat estimate from three sex-specific skinfold sites and the Siri conversion. It is restricted to the source age ranges and a three-site sum of at most 120 mm, requires trained standardised measurement, and reports model error and population limitations without presenting them as an individual accuracy bound. | primary-care, endocrinology, musculoskeletal, screening |
khorana |
Khorana Score for Chemotherapy-Associated VTE | Estimates short-term symptomatic VTE risk before a new chemotherapy regimen in adult ambulatory patients. The original bands and modern score-2 prophylaxis-assessment threshold are reported separately. | oncology, haematology, risk |
lanss |
LANSS (Leeds Assessment of Neuropathic Symptoms and Signs) | Screening for pain of predominantly neuropathic origin (7 items, 0-24; >=12 likely neuropathic). | neurology, screening, proprietary, unavailable |
ldl_cholesterol |
LDL and non-HDL Cholesterol | Calculates non-HDL cholesterol and estimates LDL cholesterol using Friedewald, Martin-Hopkins, and Sampson-NIH, with method-specific triglyceride limits. | primary-care, cardiology, endocrinology |
lrinec |
LRINEC Score (Necrotising Fasciitis Risk Indicator) | Six-variable laboratory diagnostic adjunct for severe soft-tissue infection; a score of 6 or more increases suspicion, but poor sensitivity means a low score does not exclude necrotising infection or justify delaying surgical consultation. | emergency, surgery, infectious-diseases, risk |
max_heart_rate |
Max Heart Rate & Training Zones | Estimates HRmax from age (Tanaka 2001) and derives aerobic training zones; uses Karvonen heart-rate reserve when resting HR is supplied. | primary-care, screening |
meld |
MELD Score (original, 2001) | Model for End-Stage Liver Disease: 3-month mortality risk from bilirubin, INR, and creatinine (Kamath 2001). | hepatology, prognostic |
meld_3 |
MELD 3.0 (OPTN) | Current OPTN MELD 3.0 allocation score for liver-transplant candidates registered at age 12 or older; preserves the uncapped policy-formula score separately and does not determine official allocation. | hepatology, prognostic |
mmse |
MMSE (Mini-Mental State Examination) | Cognitive screening / dementia monitoring (NICE NG97). | geriatrics, neurology, mental-health, screening, proprietary, unavailable |
mrc_dyspnoea |
MRC Dyspnoea Scale | Grades breathlessness-related disability on the classic MRC 1-5 scale (Fletcher 1959; NICE/BTS UK usage). | primary-care, respiratory |
must |
MUST (Malnutrition Universal Screening Tool) | Malnutrition risk screening (NICE CG32). | primary-care, screening, proprietary, unavailable |
news2 |
NEWS2 (National Early Warning Score 2) | NHS-mandated aggregate physiology score (RCP 2017) driving the clinical-response band. | acute-medicine, nhs-mandated, severity |
nhfs |
Nottingham Hip Fracture Score (NHFS) | Preoperative score (0-10) predicting 30-day mortality after hip fracture surgery. | surgery, geriatrics, musculoskeletal, prognostic |
nihss |
NIH Stroke Scale (NIHSS) | Standard adult 0-42 neurological deficit score for clinician-administered stroke assessment; omits the total when any officially permitted entry is unscored. | neurology, emergency, acute-medicine, severity |
npi |
Nottingham Prognostic Index (NPI) | Prognosis in primary operable breast cancer from invasive tumour size, lymph node stage, and histological grade; reports the prognostic group. | oncology, prognostic |
norton |
Norton Scale | Generic pressure-ulcer risk screening. Unavailable pending permission or legal review because no unrestricted redistribution grant has been identified; this does not assert that independent implementation is prohibited. Shipped Braden and Waterlow are alternatives but are not equivalent. | geriatrics, screening, unavailable |
nyha |
NYHA Functional Classification | Classifies current cardiac-symptom-related physical-activity limitation as Class I-IV using CC BY 4.0 NCI Thesaurus definitions. It is subjective, is not an objective exercise-capacity measure or treatment rule, and records the selected functional profile and NCI concept identifier with the result. | cardiology, severity |
ohs |
Oxford Hip Score (OHS) | Patient-reported outcome after hip replacement (NHS England PROMs). | surgery, musculoskeletal, proprietary, unavailable |
oks |
Oxford Knee Score (OKS) | Patient-reported outcome after knee replacement (NHS England PROMs). | surgery, musculoskeletal, proprietary, unavailable |
one_rep_max |
One-Rep Max Estimator | Estimates 1RM from a submaximal weight and reps using Epley, Brzycki, or Lombardi. | primary-care, musculoskeletal |
orbit |
ORBIT Bleeding Risk Score | Estimates major-bleeding risk in an anticoagulated adult with electrocardiographically confirmed atrial fibrillation from age, source-defined sex-specific haemoglobin/haematocrit thresholds or anaemia history, bleeding history, eGFR, and antiplatelet treatment. Reports observed ORBIT-AF incidence rates per 100 patient-years, not a personalised annual probability, and does not determine whether anticoagulation should be started, stopped, or withheld. | cardiology, risk |
padua |
Padua Prediction Score (VTE risk) | VTE risk in hospitalised medical inpatients, guiding thromboprophylaxis (NICE NG89). | acute-medicine, vascular, risk |
pasi |
Psoriasis Area and Severity Index (PASI) | Calculates standard PASI from clinician-rated extent, erythema, induration, and desquamation across four body regions without imposing a universal treatment threshold. | dermatology, severity |
perc |
PERC Rule (PE Rule-out Criteria) | Eight-item block rule for stable adult emergency-department outpatients with suspected pulmonary embolism and clinician gestalt below 15%; PERC-negative can avoid further PE-specific testing. | emergency, respiratory, vascular |
phq9 |
PHQ-9 Depression Severity | Nine-item depression severity score (0-27) with standard bands; item 9 flags self-harm risk. | primary-care, mental-health, screening |
pitt_bacteraemia |
Pitt Bacteraemia Score | Acute severity score for hospitalised bloodstream infection or CRE infection, using index-culture-day physiology and cardiac arrest on that day or in the preceding 48 hours. | acute-medicine, infectious-diseases, severity, prognostic |
protein_target |
Resistance-Training Protein Intake | Calculates Morton et al.'s prudent 2.2 g/kg/day protein amount for healthy, non-energy-restricted adults undertaking resistance training and reports the uncertain exploratory 1.62 g/kg/day breakpoint behind it. Not a general dietary minimum, a caloric-deficit target, or a safety ceiling. | primary-care, endocrinology, musculoskeletal |
psa_density |
Prostate-specific Antigen Density | Calculates total serum PSA divided by imaging-derived prostate volume as a continuous prostate-cancer risk modifier, without imposing a universal diagnostic or biopsy cutoff. | urology, oncology |
qfracture |
QFracture (10-year fracture risk) | 10-year risk of major osteoporotic and hip fracture (QFracture-2012), the open UK alternative to FRAX (NICE CG146/NG6). | primary-care, endocrinology, risk |
qrisk3 |
QRISK3 (10-year cardiovascular risk) | 10-year risk of heart attack or stroke (QRISK3-2017), the UK standard for primary CVD risk assessment (NICE NG238). | primary-care, cardiology, risk |
qsofa |
qSOFA Score (Sepsis-3) | Quick bedside prompt flagging suspected-infection patients at higher risk of poor outcome (Sepsis-3). A prognostic prompt, not a diagnosis of sepsis. | acute-medicine, intensive-care, screening |
rcri |
Revised Cardiac Risk Index (RCRI) | Six-factor Lee index for in-hospital major cardiac complications after noncardiac surgery, used within stepwise adult preoperative assessment; historical event rates are shown only when the original validation population matches. | cardiology, surgery, risk |
relative_fat_mass |
Relative Fat Mass (RFM) | Sex-specific estimate of whole-body fat percentage from height and source-protocol waist circumference (Woolcott-Bergman 2018), evaluated against DXA in US adults aged 20-69; accuracy decreased with age and was lower at lower body-fat levels. It does not provide a diagnostic obesity cut-point. | primary-care, endocrinology, screening |
sad_persons |
SAD PERSONS | Generic legacy suicide-risk checklist. Unavailable for clinical-safety reasons: NICE rejects using risk scales for prediction or disposition after self-harm, while separate systematic-review and validation evidence reports poor sensitivity and misclassification for SAD PERSONS. Returns no score; use comprehensive psychosocial assessment and risk formulation, immediate safety assessment, and urgent specialist support where indicated. | mental-health, risk, unavailable |
scorad |
SCORAD | Generic atopic-dermatitis extent and severity assessment. Unavailable because all rights are reserved and adaptation/software-integration rights are controlled, with no unrestricted grant identified; use under local licence or use clinician-directed eczema assessment, with no equivalent unrestricted scored alternative identified. | dermatology, severity, proprietary, unavailable |
score2 |
SCORE2 / SCORE2-OP | Generic European 10-year fatal and non-fatal cardiovascular risk prediction. Unavailable pending permission or legal review because explicit unrestricted redistribution terms for a complete calibrated implementation have not been identified; this does not assert that independent implementation is prohibited. Use official ESC HeartScore, or QRISK3 for its validated UK population, which is not equivalent. | cardiology, risk, unavailable |
skeletal_muscle_mass_index |
Skeletal Muscle Mass Index (SMI) | Whole-body DXA appendicular lean mass normalised to height (primary EWGSOP2 SMI result) and to BMI (supplementary FNIH preliminary candidate criterion) in adults aged 65 or older. Reports each cut-off classification separately because they can disagree. Assesses muscle quantity only - not a standalone sarcopenia diagnosis or exclusion. | primary-care, geriatrics, musculoskeletal, screening |
sofa |
SOFA Score (Sequential Organ Failure Assessment) | Grades dysfunction across six organ systems (0-24); underpins the Sepsis-3 definition (rise >= 2 from baseline). | intensive-care, severity |
timi |
TIMI Risk Score for UA/NSTEMI | 14-day risk of death, MI, or urgent revascularisation in unstable angina / NSTEMI (Antman et al, JAMA 2000). Not the STEMI score. | cardiology, acute-medicine, risk |
uacr |
uACR (urine albumin-to-creatinine ratio) | Urine albumin-to-creatinine ratio from a measured ratio or raw albumin/creatinine; reports the KDIGO albuminuria category (A1-A3). | primary-care, nephrology |
ukeld |
UKELD (UK Model for End-Stage Liver Disease) | UK liver-transplant listing score from INR, creatinine, bilirubin, and sodium (Barber 2011); 49 is the listing threshold. | hepatology, prognostic |
waist_to_height_ratio |
Waist-to-Height Ratio (WHtR) | Unitless central-adiposity index: waist circumference divided by height. Boundary 0.5 is the "keep your waist to less than half your height" rule. | primary-care, endocrinology, screening |
waist_to_hip_ratio |
Waist-to-Hip Ratio (WHR) | Adult waist circumference divided by hip circumference, compared with commonly WHO-attributed cut-offs (>= 0.90 men, >= 0.85 women); the WHO report cautions that cut-offs are not universal. | primary-care, endocrinology, screening |
waterlow |
Waterlow Score (Pressure Ulcer Risk) | Bedside pressure-ulcer (pressure-injury) risk assessment: summed weighted categories (10+ at risk, 15+ high, 20+ very high). | acute-medicine, geriatrics, screening |
wells_dvt |
Wells Score (DVT) | Clinical pre-test probability of deep vein thrombosis, guiding ultrasound vs D-dimer (NICE NG158). | emergency, vascular |
wells_pe |
Wells Score for Pulmonary Embolism | Pretest probability of pulmonary embolism, guiding D-dimer vs CTPA (NICE NG158). | emergency, respiratory, vascular |
wilks |
Wilks Score | Historical bodyweight-adjusted powerlifting score for bench press or three-lift total using the IPF-era Wilks coefficient; the IPF replaced Wilks with IPF Points in 2019. | musculoskeletal |
Unavailable on principle¶
Eleven widely-used clinical tools are confirmed rights-locked. They are tagged proprietary + unavailable in the table above. Invoking any of them returns unavailable: proprietary with the owner, reason, alternatives, and source, never a score:
$ clincalc calc frax --input '{}'
frax = unavailable: proprietary
FRAX (10-year fracture risk) is not available here because it is proprietary or licence-locked. Owner: University of Sheffield (Centre for Metabolic Bone Diseases). The FRAX algorithm and its country-specific coefficients are a trade secret and have never been published, so it cannot be reimplemented from primary literature. ...
Norton and SCORE2 / SCORE2-OP are withheld pending permission or legal review without claiming that their algorithms are proprietary or that independent implementation is prohibited. They return unavailable: rights-review. SAD PERSONS is unavailable for a different reason and returns unavailable: clinical-safety. None is tagged proprietary or returns a score. The SAD PERSONS interpretation explicitly warns that the entry must not be used to reduce observation, referral, treatment, or admission/discharge decisions.
The point is to make the gap a first-class object. Where an open alternative exists in this catalogue, it is named in the response (e.g. qfracture for FRAX, amts and fourat for MMSE).
See Why some calculators are unavailable for the rationale.
Wishlist (candidates for future addition)¶
Calculators below are clinically valuable and on the radar but not yet implemented. They include remaining entries from the 23-calculator gap recorded against MedikQuantis (Laura Piñero Roig, Barcelona, MIT) at upstream commit 16c63c85, plus candidates from other sources. The complete governed queue and stable identifiers live in spec/calculator-roadmap.md.
Contributions welcome. The shape of the work is documented in How it works, AGENTS.md, and the spec/ and examples/ directories.
| Candidate | What it does | Tentative tags |
|---|---|---|
| StatinMD (Oxford STRATIFY) | Personalised 1/5/10-year risk of serious statin-induced muscle disorders (rhabdomyolysis / hospitalised myopathy) from 22 routinely-recorded factors (Cai et al, Lancet Digital Health 2026). Natural pairing with QRISK3: QRISK3 is the benefit side, StatinMD is the harm side. Licensed for academic use via Oxford University Innovation - covered while this project is non-commercial. (source) | primary-care, cardiology, risk |
| RCPCH Digital Growth Charts | UK-WHO + UK90; z-score / centile / SDS; chart rendering. Needs LMS tables + RCPCH licensing terms. | paediatrics |
| Durnin-Womersley 4-site skinfold body fat % | Caliper-derived body-fat estimate for training and body-comparison settings, using the age-banded 4-site (biceps, triceps, subscapular, suprailiac) equations. The shipped jackson_pollock_skinfold calculator covers the 3-site Jackson-Pollock method only. |
primary-care, endocrinology, screening |
| Energy-restricted protein / macronutrient target | Protein or broader macronutrient targets from weight or lean body mass and a defined goal, including lean-mass retention during a caloric deficit. The shipped protein_target calculator covers only healthy, non-energy-restricted adults undertaking resistance training because Morton et al. excluded energy restriction. |
primary-care, endocrinology |
| Axial length centile charts (CREAM-Kids) | Age-, sex-, and region-specific centile charts for axial eye length in children and adolescents (Kneepkens, Lingham, Mackey et al, JAMA Ophthalmology 2026; DOI: 10.1001/jamaophthalmol.2026.2539). Reusable coefficients/data and their distribution terms must be confirmed before implementation; serial change needs a separately cited model. | ophthalmology, paediatrics, screening |
MedikQuantis parity is complete when the independently implemented calculation passes clincalc's normal primary-source, licence, schema, and testing gates. Translation progress is tracked independently in the README status table; a locale is not advertised until the review and completeness gates in spec/multilingual.md pass.