Is Z77.31 a billable ICD-10-CM code?

Yes. Z77.31 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z77.31 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).

Z77.31

Z77.31 — Contact with and (suspected) exposure to Gulf War theater

Billable / specific codeICD-10-CMPOA exempt

Z77.31 is a billable, specific ICD-10-CM code for contact with and (suspected) exposure to gulf war theater. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Contact with and (suspected) exposure to Persian Gulf War theater

Risk adjustment

Z77.31 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.

How Z77.31 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 Z77.31.

Contact›war theater(Gulf) (Persian Gulf)

Related codes at this level

Codes that share Z77.3. If Z77.31 is not quite right, the correct code is usually one of these.

Z77.39Contact with and (suspected) exposure to other war theater

Questions about Z77.31

Is Z77.31 a billable ICD-10-CM code?: Yes. Z77.31 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z77.31 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).