# Rome IV infant dyschezia

Rome IV Infant Dyschezia

Status: LIVE
Price: $0.005 USDC
`GET /api/calc/rome_iv_infant_dyschezia`
HTML: https://magentlab.com/docs/rome-iv-infant-dyschezia
Markdown: https://magentlab.com/docs/rome-iv-infant-dyschezia.md

Not a medical device. Not a diagnosis, dose, or listing recommendation.

## What it computes

Apply the Benninga 2016 Rome IV G6 infant dyschezia diagnostic criteria and return whether the published infant dyschezia box holds (rome_iv_infant_dyschezia).

## When to use

When an agent already has the three caller-assigned Benninga 2016 Rome IV G6 flags and needs whether the published infant dyschezia box holds. magent does not examine the infant.

## When not to use

- Not a medical device.
- Not a diagnosis. magent does not diagnose infant dyschezia.
- The caller assigns the three flags, including infant_less_than_9_months. magent does not examine the infant.
- This tool is Benninga 2016 Rome IV G6 infant dyschezia only. Not infant functional constipation. Not adult Rome IV FC (Mearin 2016 C2).

## Formula

```
rome_iv_infant_dyschezia iff infant_less_than_9_months and straining_and_crying_at_least_10_minutes_before_soft_stools and no_other_health_problems (Benninga 2016 Rome IV G6 infant dyschezia)
```

## Citation

[Childhood Functional Gastrointestinal Disorders: Neonate/Toddler](https://doi.org/10.1053/j.gastro.2016.02.016)
Benninga MA, Faure C, Hyman PE, St James Roberts I, Schechter NL, Nurko S
Gastroenterology. 2016;150(6):1443-1455
DOI: [10.1053/j.gastro.2016.02.016](https://doi.org/10.1053/j.gastro.2016.02.016)

## Worked example

### All three required flags

Given: `infant_less_than_9_months=true, no_other_health_problems=true, straining_and_crying_at_least_10_minutes_before_soft_stools=true`

1. Infant less than 9 months is true
2. At least 10 minutes of straining and crying before soft stools is true
3. No other health problems is true
4. rome_iv_infant_dyschezia is true


### Age and straining without no other health problems

Given: `infant_less_than_9_months=true, no_other_health_problems=false, straining_and_crying_at_least_10_minutes_before_soft_stools=true`

1. Infant less than 9 months is true
2. At least 10 minutes of straining and crying before soft stools is true
3. No other health problems is false
4. rome_iv_infant_dyschezia is false


## Also searched as

- Rome IV infant dyschezia
- Benninga 2016 infant dyschezia
- Rome IV G6
- infant dyschezia
- neonate toddler dyschezia
- straining crying soft stools
- Rome IV G6 infant dyschezia
- functional infant dyschezia

## Parameters

- `infant_less_than_9_months` (boolean, required): Infant less than 9 months of age, as assigned (Benninga 2016 Rome IV G6). true or false as assigned by the caller. magent does not examine the infant.
- `straining_and_crying_at_least_10_minutes_before_soft_stools` (boolean, required): At least 10 minutes of straining and crying before successful or unsuccessful passage of soft stools, as assigned (Benninga 2016 Rome IV G6). true or false as assigned by the caller. magent does not examine the infant.
- `no_other_health_problems` (boolean, required): No other health problems, as assigned (Benninga 2016 Rome IV G6). true or false as assigned by the caller. magent does not examine the infant.

## Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

Method: `POST /api/calc/rome_iv_infant_dyschezia`
Max items: 25
Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic)
Status: PREVIEW

- 1 to 25 items. Each item uses the same keys as the GET query parameters.
- POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
- The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
- HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
- Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
- x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request:

```json
{
  "items": [
    {
      "infant_less_than_9_months": "true",
      "no_other_health_problems": "true",
      "straining_and_crying_at_least_10_minutes_before_soft_stools": "true"
    },
    {
      "infant_less_than_9_months": "true",
      "no_other_health_problems": "true",
      "straining_and_crying_at_least_10_minutes_before_soft_stools": "true"
    }
  ]
}
```

Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/rome-iv-infant-dyschezia

Example 200:

```json
{
  "count": 2,
  "path": "/api/calc/rome_iv_infant_dyschezia",
  "items": [
    {
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Benninga MA, Faure C, Hyman PE, St James Roberts I, Schechter NL, Nurko S",
        "doi": "10.1053/j.gastro.2016.02.016",
        "id": "benninga-2016",
        "pmid": "27144631",
        "source": "Gastroenterology. 2016;150(6):1443-1455",
        "title": "Childhood Functional Gastrointestinal Disorders: Neonate/Toddler"
      },
      "formula": "rome_iv_infant_dyschezia",
      "formula_expression": "rome_iv_infant_dyschezia iff infant_less_than_9_months and straining_and_crying_at_least_10_minutes_before_soft_stools and no_other_health_problems (Benninga 2016 Rome IV G6 infant dyschezia)",
      "criteria": [
        {
          "factor": "infant_less_than_9_months",
          "met": true
        },
        {
          "factor": "straining_and_crying_at_least_10_minutes_before_soft_stools",
          "met": true
        },
        {
          "factor": "no_other_health_problems",
          "met": true
        }
      ],
      "rome_iv_infant_dyschezia": true
    },
    {
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Benninga MA, Faure C, Hyman PE, St James Roberts I, Schechter NL, Nurko S",
        "doi": "10.1053/j.gastro.2016.02.016",
        "id": "benninga-2016",
        "pmid": "27144631",
        "source": "Gastroenterology. 2016;150(6):1443-1455",
        "title": "Childhood Functional Gastrointestinal Disorders: Neonate/Toddler"
      },
      "formula": "rome_iv_infant_dyschezia",
      "formula_expression": "rome_iv_infant_dyschezia iff infant_less_than_9_months and straining_and_crying_at_least_10_minutes_before_soft_stools and no_other_health_problems (Benninga 2016 Rome IV G6 infant dyschezia)",
      "criteria": [
        {
          "factor": "infant_less_than_9_months",
          "met": true
        },
        {
          "factor": "straining_and_crying_at_least_10_minutes_before_soft_stools",
          "met": true
        },
        {
          "factor": "no_other_health_problems",
          "met": true
        }
      ],
      "rome_iv_infant_dyschezia": true
    }
  ]
}
```

## Response fields

- `formula` (string): rome_iv_infant_dyschezia
- `formula_expression` (string): Benninga 2016 Rome IV G6 infant dyschezia: infant less than 9 months, at least 10 minutes of straining and crying before successful or unsuccessful passage of soft stools, and no other health problems
- `rome_iv_infant_dyschezia` (boolean): true only when all three required flags hold. Not a diagnosis.
- `criteria` (array): Per-factor rows with factor and met for the three required flags
- `citation` (object): Benninga 2016 Gastroenterology citation
- `disclaimer` (string): Not-a-device notice

## Example JSON

Frozen fixture. Not a live lookup.

```json
{
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Benninga MA, Faure C, Hyman PE, St James Roberts I, Schechter NL, Nurko S",
    "doi": "10.1053/j.gastro.2016.02.016",
    "id": "benninga-2016",
    "pmid": "27144631",
    "source": "Gastroenterology. 2016;150(6):1443-1455",
    "title": "Childhood Functional Gastrointestinal Disorders: Neonate/Toddler"
  },
  "formula": "rome_iv_infant_dyschezia",
  "formula_expression": "rome_iv_infant_dyschezia iff infant_less_than_9_months and straining_and_crying_at_least_10_minutes_before_soft_stools and no_other_health_problems (Benninga 2016 Rome IV G6 infant dyschezia)",
  "criteria": [
    {
      "factor": "infant_less_than_9_months",
      "met": true
    },
    {
      "factor": "straining_and_crying_at_least_10_minutes_before_soft_stools",
      "met": true
    },
    {
      "factor": "no_other_health_problems",
      "met": true
    }
  ],
  "rome_iv_infant_dyschezia": true
}
```

## Errors

- HTTP 400 `invalid_rome_iv_infant_dyschezia`: Rome IV infant dyschezia needs the Benninga 2016 neonate/toddler G6 flags. Returned before settlement; you are not charged.
- HTTP 400 `invalid_flag`: boolean clinical flags must be true or false Returned before settlement; you are not charged.
- HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
- HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
- HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged.

Shared HTTP 402 and 503: https://magentlab.com/docs/payments

## Related tools

- [Rome IV Infant Colic](https://magentlab.com/docs/rome-iv-infant-colic) — Apply the Benninga 2016 Rome IV G4 infant colic clinical criteria and return whether the published clinical box holds (rome_iv_infant_colic).
- [Rome IV FC](https://magentlab.com/docs/rome-iv-fc) — Apply the Mearin 2016 Rome IV C2 functional constipation criteria and return symptom_count (0-6) and whether the published C2 box holds (rome_iv_fc).

## Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s.

- GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall).
- HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote.
- Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering.
- Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional.
- Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402.

- offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront.
- offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization.

- not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search.

Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers).

Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments

Stdio MCP (one process per host): https://magentlab.com/docs/mcp

## Guarantees

- HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
- exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
- HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
- Execution is timeout-bounded and concurrency-capped.
- Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.