Is Z04.3 a billable ICD-10-CM code?

Yes. Z04.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z04.3 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services for examinations (Z00-Z13).

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.

Risk adjustment

Z04.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move 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 of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A57497Billing and Coding: Chest X-Ray Policynot covered

How Z04.3 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z04.3.

Observation›accident NEC
Examination›following›accident NEC

Related codes at this level

Codes that share Z04. If Z04.3 is not quite right, the correct code is usually one of these.

Questions about Z04.3

Is Z04.3 a billable ICD-10-CM code?: Yes. Z04.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z04.3 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Persons encountering health services for examinations (Z00-Z13).