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Health

Charlson Comorbidity Index (Age-Adjusted)

Calculate the Charlson Comorbidity Index (CCI), including the age-adjusted variant, to predict 1-year mortality from chronic comorbidities. 19 comorbidities are weighted by mortality risk: 1 point (MI, CHF, PVD, cerebrovascular disease, dementia, chronic pulmonary disease, connective tissue disease, peptic ulcer, mild liver disease, diabetes without complications); 2 points (hemiplegia/paraplegia, moderate-to-severe CKD, diabetes with end-organ damage, any non-metastatic tumor, leukemia, lymphoma); 3 points (moderate-to-severe liver disease); 6 points (metastatic solid tumor, AIDS). Age adjustment adds 1 point per decade ≥50 (50-59 +1 … ≥90 +5). Interpretation: 0 ~8%, 1-2 ~25%, 3-4 ~50%, ≥5 ~80-90% 1-year mortality (derivation cohort). Derived from Charlson 1987 (J Chronic Dis) and the 1994 validation. Not medical advice.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/charlson-comorbidity-index' \
  -H 'Content-Type: application/json' \
  -d '{"age":75,"mi":true,"chf":false,"pvd":false,"cvd":false,"dementia":false,"pulmonary":false,"connective":false,"ulcer":false,"mildLiver":false,"dmSimple":true,"hemiplegia":false,"ckd":false,"dmOrgan":false,"tumor":false,"leukemia":false,"lymphoma":false,"severeLiver":false,"metastatic":true,"aids":false}'

© 2026 Elysia Tools. Developer documentation.

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API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP
POST https://api.elysiatools.com/en/api/tools/charlson-comorbidity-index

Parameters

NameTypeRequiredDescription
agenumberYesAge in years. Adds 1 point per decade ≥50 (50-59 +1, 60-69 +2, 70-79 +3, 80-89 +4, ≥90 +5).
micheckboxNoHistory of myocardial infarction. +1.
chfcheckboxNoCongestive heart failure. +1.
pvdcheckboxNoPeripheral vascular disease. +1.
cvdcheckboxNoCerebrovascular disease (TIA, stroke). +1.
dementiacheckboxNoDementia. +1.
pulmonarycheckboxNoChronic pulmonary disease (e.g., COPD). +1.
connectivecheckboxNoConnective tissue disease (e.g., SLE, RA). +1.
ulcercheckboxNoPeptic ulcer disease. +1.
mildLivercheckboxNoMild liver disease (chronic hepatitis, cirrhosis without portal HTN). +1.
dmSimplecheckboxNoDiabetes without end-organ damage. +1.
hemiplegiacheckboxNoHemiplegia or paraplegia. +2.
ckdcheckboxNoModerate-to-severe chronic kidney disease. +2.
dmOrgancheckboxNoDiabetes with end-organ damage (retinopathy, neuropathy, nephropathy). +2.
tumorcheckboxNoAny solid tumor (non-metastatic) within last 5 years. +2.
leukemiacheckboxNoLeukemia (acute or chronic). +2.
lymphomacheckboxNoLymphoma. +2.
severeLivercheckboxNoModerate-to-severe liver disease (cirrhosis with portal HTN). +3.
metastaticcheckboxNoMetastatic solid tumor. +6.
aidscheckboxNoAIDS (not just HIV). +6.

Response format

JSON result

JSON
{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json
{
  "mcpServers": {
    "elysiatools-charlson-comorbidity-index": {
      "name": "charlson-comorbidity-index",
      "description": "Calculate the Charlson Comorbidity Index (CCI), including the age-adjusted variant, to predict 1-year mortality from chronic comorbidities. 19 comorbidities are weighted by mortality risk: 1 point (MI, CHF, PVD, cerebrovascular disease, dementia, chronic pulmonary disease, connective tissue disease, peptic ulcer, mild liver disease, diabetes without complications); 2 points (hemiplegia/paraplegia, moderate-to-severe CKD, diabetes with end-organ damage, any non-metastatic tumor, leukemia, lymphoma); 3 points (moderate-to-severe liver disease); 6 points (metastatic solid tumor, AIDS). Age adjustment adds 1 point per decade ≥50 (50-59 +1 … ≥90 +5). Interpretation: 0 ~8%, 1-2 ~25%, 3-4 ~50%, ≥5 ~80-90% 1-year mortality (derivation cohort). Derived from Charlson 1987 (J Chronic Dis) and the 1994 validation. Not medical advice.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=charlson-comorbidity-index",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call
{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "charlson-comorbidity-index",
    "arguments": {
  "age": 75,
  "mi": true,
  "chf": false,
  "pvd": false,
  "cvd": false,
  "dementia": false,
  "pulmonary": false,
  "connective": false,
  "ulcer": false,
  "mildLiver": false,
  "dmSimple": true,
  "hemiplegia": false,
  "ckd": false,
  "dmOrgan": false,
  "tumor": false,
  "leukemia": false,
  "lymphoma": false,
  "severeLiver": false,
  "metastatic": true,
  "aids": false
}
  }
}
Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

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