# Mumtaz 2019 Decompensated-Cirrhosis 30-Day Readmission Score

> Mumtaz 2019 Decompensated-Cirrhosis 30-Day Readmission Score is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Calculates the Mumtaz 2019 integer score and estimated 30-day all-cause readmission risk after a decompensated-cirrhosis index admission, returning a percent estimate and risk band.

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/mumtaz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mumtaz-2019-decompensated-cirrhosis-30-day-readmission-score-9200538b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zQ-qw8UhFqhghe1_yoi6q

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability mumtaz-2019-decompensated-cirrhosis-30-day-readmission-score-9200538b
```

Example prompt: Calculate the Mumtaz 2019 readmission score for a 58-year-old Medicare patient with decompensated cirrhosis from a non-alcoholic etiology — they had ascites and hepatic encephalopathy during the admission, no variceal bleeding, no HCC, had paracentesis but no hemodialysis, Elixhauser ≥3 is true, and they're being discharged home with home health services.

## When to prefer this

Use this endpoint when you need a validated, published clinical risk score (Mumtaz 2019) for 30-day readmission specifically after decompensated cirrhosis, and you have already assembled all required clinical variables including a caller-computed Elixhauser flag. Prefer this over generic readmission tools when the patient population is explicitly decompensated-cirrhosis. Do not use for non-cirrhosis liver disease, pediatric patients, or as a substitute for discharge decision-making.

## Known failure modes

- Missing required query parameters (age, disposition, payer, or any boolean flag) returns a 400 or validation error
- Invalid disposition string (not one of: routine, transfer, home_health, ama) returns an error
- Invalid primary_payer value (not one of: medicare, medicaid, private, self_pay, other) returns an error
- Age outside 18–120 range may produce unexpected results or be rejected
- Caller provides incorrect Elixhauser value — the endpoint does not compute Elixhauser itself and trusts caller input
- Payment failure (x402) if USDC balance is insufficient, resulting in a 402 response

## How this service works

Mumtaz 2019 integer score for 30-day all-cause readmission after decompensated-cirrhosis index admission. Age, payer, caller-assigned Elixhauser >=3, nonalcoholic etiology, ascites, encephalopathy, variceal bleeding (-7), HCC, paracentesis, hemodialysis, and disposition. Range -11 to 49. Returns estimated_readmission_percent and readmission_band (low <20%, medium 20-30%, high >30%). Not a discharge order. magent does not compute Elixhauser.

## Output

Returns an estimated_readmission_percent (estimated 30-day all-cause readmission probability as a percentage) and a readmission_band string classifying risk as 'low' (<20%), 'medium' (20–30%), or 'high' (>30%), derived from the Mumtaz 2019 integer score (range -11 to 49).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "age",
      "primary_payer",
      "elixhauser_ge_3",
      "non_alcoholic_etiology",
      "ascites",
      "hepatic_encephalopathy",
      "variceal_bleeding",
      "hepatocellular_carcinoma",
      "paracentesis",
      "hemodialysis",
      "disposition"
     ],
     "properties": {
      "age": {
       "type": "integer",
       "description": "Age in years (18-120). Mumtaz 2019: 18-39 → +7; 40-64 → +4; ≥65 → 0. Adult derivation."
      },
      "ascites": {
       "type": "boolean",
       "description": "Caller-assigned ascites on the index admission (Mumtaz 2019). true → +5; false → 0. magent does not examine the patient."
      },
      "disposition": {
       "type": "string",
       "description": "Discharge disposition (Mumtaz 2019). routine → 0; transfer → -1; home_health → +1; ama → +10. Caller-assigned; not a discharge order."
      },
      "hemodialysis": {
       "type": "boolean",
       "description": "Caller-assigned hemodialysis during the index admission (Mumtaz 2019). true → +7; false → 0. magent does not order dialysis."
      },
      "paracentesis": {
       "type": "boolean",
       "description": "Caller-assigned paracentesis during the index admission (Mumtaz 2019). true → +4; false → 0. magent does not record procedures."
      },
      "primary_payer": {
       "type": "string",
       "description": "Primary payer (Mumtaz 2019). medicare → +4; medicaid → +5; private → 0; self_pay → -3; other → -1. Caller-assigned; magent does not read insurance."
      },
      "elixhauser_ge_3": {
       "type": "boolean",
       "description": "Caller-assigned Elixhauser comorbidity index ≥3 (Mumtaz 2019). true → +2; false → 0. magent does not compute Elixhauser."
      },
      "variceal_bleeding": {
       "type": "boolean",
       "description": "Caller-assigned variceal bleeding on the index admission (Mumtaz 2019). true → -7; false → 0. magent does not diagnose b
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mumtaz-2019-decompensated-cirrhosis-30-day-readmission-score-9200538b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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