Z51.89

Encounter for other specified aftercare

Code system: ICD-10-CM
Status: Active
Billable: Yes
In effect from: 2026-10-01

Request

curl https://api.healthcare.dev/v1/codes/icd10cm/Z51.89 \
  -H "Authorization: Bearer $HDEV_API_KEY"

200 OK · application/json

{
  "data": {
    "code": "Z51.89",
    "parent": "Z51.8",
    "status": "active",
    "system": "icd10cm",
    "display": "Encounter for other specified aftercare",
    "billable": true,
    "description": "Encounter for other specified aftercare",
    "replaced_by": [],
    "effective_end": null,
    "effective_start": "2026-10-01",
    "care_categories": [],
    "care_category_details": []
  },
  "meta": {
    "source": "cms-icd10",
    "data_version": "fy2027"
  }
}

Hierarchy

Where Z51.89 sits

Parent codes

Child codes

None: Z51.89 is a billable code at the most specific level.

Change history

Lifecycle

Z51.89 has been in effect since 2026-10-01. This page shows ICD-10-CM release fy2027.

Add as_of=YYYY-MM-DD to the request to get this code exactly as it was on a past date. The change feed (GET /v1/changes) lists what each release added, changed or retired across the whole dataset; a per-code change list isn't published yet.

Use it

Look up Z51.89 from code or an agent

curl

curl https://api.healthcare.dev/v1/codes/icd10cm/Z51.89 \
  -H "Authorization: Bearer $HDEV_API_KEY"

MCP prompt

Using the healthcare.dev MCP server, look up ICD-10-CM code Z51.89. Tell me what it means, whether it is billable, whether it is active, and list its parent and child codes.

Get a free key ICD-10 docs Connect the MCP server

Source: CMS and CDC NCHS, release fy2027. Public domain. Reference data, not medical or billing advice.