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Z04.3

Z04.3: Encounter for examination and observation following other accident

Billable / specific codeICD-10-CM

Z04.3 is a billable, specific ICD-10-CM code for encounter for examination and observation following other accident. It is valid for submission on a claim.

Check Z04.3 with the rest of the claim: free scrubber

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z04.3 is named in 1 Medicare coverage policy: 0 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A57497Billing and Coding: Chest X-Ray Policynot covered

Alphabetic index entries that lead here

  • Observation›accident NEC
  • Examination›following›accident NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Z04

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.