Y99.0 — Civilian activity done for income or pay
Y99.0 is a billable, specific ICD-10-CM code for civilian activity done for income or pay. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Civilian activity done for financial or other compensation
Other codes that can never be billed with Y99.0
These codes carry an Excludes1 note pointing at Y99.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Y99.0 alone.
- Y99.8Other external cause status
Risk adjustment
Y99.0 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 Y99.0 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 Y99.0.
- Work related condition
- External cause status›civilian activity done for financial or other compensation
- External cause status›civilian activity done for income or pay
- Factors, supplemental›work-related condition
- Status of external cause›civilian activity done for financial or other compensation
- Status of external cause›civilian activity done for income or pay
Related codes at this level
Codes that share Y99. If Y99.0 is not quite right, the correct code is usually one of these.
Questions about Y99.0
- Is Y99.0 a billable ICD-10-CM code?
- Yes. Y99.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Y99.0 sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Supplementary factors related to causes of morbidity classified elsewhere (Y90-Y99).
- What cannot be coded together with Y99.0?
- Y99.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.