Change Healthcare

aid: change-healthcare
url: https://raw.githubusercontent.com/api-evangelist/change-healthcare/refs/heads/main/apis.yml
name: Change Healthcare
type: Index
accessModel:
  pricing: unknown
  onboarding: request
  trial: false
  try_now: false
  public: false
  label: Contact Sales
  confidence: high
  source:
  - plans
  - https://developer.optum.com/eligibilityandclaims/docs/create-a-sandbox-account
  generated: '2026-08-15'
  method: searched
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/change-healthcare.png
tags:
- Healthcare
- Technology
- Analytics
- EDI
- Claims
- Eligibility
- Clearinghouse
- Revenue Cycle Management
- Prior Authorization
description: 'Change Healthcare was one of the largest healthcare technology and clearinghouse companies in the United States,
  moving eligibility, claim, remittance and prior-authorization transactions between providers and payers over X12 EDI. UnitedHealth
  Group acquired it in October 2022 and folded it into Optum, and the brand has since been retired: www.changehealthcare.com
  redirects to business.optum.com, developers.changehealthcare.com redirects path-for-path to developer.optum.com, and the
  apis.changehealthcare.com API gateway is decommissioned and documented by Optum as "an old domain and no longer supported".
  The Change Healthcare Medical Network APIs — Eligibility v3, Professional Claims v3, Institutional Claims v1, Claim Status
  v2, Claims Responses and Reports v2, Attachments, PayerList v1 and Prior Authorization v1 — are still operated and documented,
  but on Optum infrastructure and under Optum hosts.'
created: '2026-04-19'
modified: '2026-08-15'
specificationVersion: '0.23'
apis:
- aid: change-healthcare:change-healthcare-api
  name: Change Healthcare Medical Network API
  tags:
  - Healthcare
  - EDI
  - Eligibility
  - Claims
  - Prior Authorization
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://apigw.optum.com/medicalnetwork/
  humanURL: https://developers.changehealthcare.com/
  description: JSON-over-REST front end to the HIPAA X12 EDI transaction set — 270/271 eligibility, 276/277 claim status,
    837P/837I claim submission and validation, 835/277 claims responses and reports, 278 prior authorization and referrals,
    claim attachments, and the payer list. OAuth 2.0 client credentials against apip/auth/v2/token, one-hour bearer tokens,
    versioning carried in the URL path.
  properties:
  - url: https://developer.optum.com/eligibilityandclaims/docs
    type: Documentation
    name: 'Successor documentation. developers.changehealthcare.com CNAMEs to developer.optum.com and 301s path-for-path (verified:
      /eligibilityandclaims/docs/api-urls on the changehealthcare.com host lands on the identical Optum page), so this is
      the Change Healthcare Medical Network reference under its acquirer.'
  - url: https://developer.optum.com/eligibilityandclaims/reference/api-overview
    type: APIReference
  - url: https://developer.optum.com/eligibilityandclaims/docs/get-started-with-optum-api
    type: GettingStarted
  - url: https://developer.optum.com/eligibilityandclaims/docs/create-a-sandbox-account
    type: SignUp
    name: Request sandbox access — there is no self-serve signup.
  - url: https://developer.optum.com/eligibilityandclaims/docs/eligibility-release-notes
    type: ChangeLog
    name: Dated release notes for Medical Network Eligibility.
  - url: https://www.postman.com/changehealthcare-cdp-dev/workspace/change-healthcare-medical-network-apis/overview
    type: Postman
    name: Public Postman workspace published by the changehealthcare-cdp-dev team, carrying the Medical Network Eligibility
      v3, Professional Claims v3, Institutional Claims v1, Claim Status v2 and Claims Responses and Reports collections. Note
      postman.com soft-200s every URL, so presence was established from indexed collection pages under the workspace, not
      from the status code.
  - url: lifecycle/change-healthcare-lifecycle.yml
    type: Lifecycle
  - url: conformance/change-healthcare-conformance.yml
    type: Conformance
common:
- type: Website
  url: https://www.changehealthcare.com
- type: DeveloperPortal
  url: https://developer.optum.com/
- type: StatusPage
  url: https://status.changehealthcare.com
  name: Live on a changehealthcare.com host; CNAMEs into Atlassian Statuspage and serves a machine-readable /api/v2/summary.json.
    Branded "Optum Solutions".
- type: TermsOfService
  url: https://www.optum.com/en/terms-of-use.html
- type: PrivacyPolicy
  url: https://www.optum.com/en/privacy-policy.html
- type: LLMsTxt
  url: llms/change-healthcare-llms.txt
  name: Served verbatim at https://www.changehealthcare.com/llms.txt (HTTP 200, text/plain). It is an AI-usage POLICY, not
    a docs index — every usage class is marked disallowed.
- type: Lifecycle
  url: lifecycle/change-healthcare-lifecycle.yml
- type: Conformance
  url: conformance/change-healthcare-conformance.yml
- type: Packages
  url: packages/change-healthcare-packages.yml
  name: Zero first-party SDKs. The three RubyGems recorded are customer-written wrappers, so no SDKs pointer is emitted.
- type: DomainSecurity
  url: security/change-healthcare-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/change-healthcare
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-15'
  status: minimal
  artifacts_added: 5
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: Change Healthcare no longer operates a developer surface of its own — UnitedHealth Group absorbed it into Optum,
    www.changehealthcare.com 301s to business.optum.com, developers.changehealthcare.com 301s to developer.optum.com, and
    Optum's own documentation tells integrators "Do not use the https://apis.changehealthcare.com as it is an old domain and
    no longer supported"; the surviving Medical Network API contracts are served from apigw.optum.com and are catalogued under
    all/optum rather than duplicated here.
  evidence:
  - url: https://www.changehealthcare.com/
    status: 301
  - url: https://developers.changehealthcare.com/
    status: 301
  - url: https://apis.changehealthcare.com/openapi.json
    status: 400
  - url: https://api.changehealthcare.com/
    status: 0
  - url: https://developer.optum.com/eligibilityandclaims/docs/api-urls
    status: 200
  checked: '2026-08-15'