Is O9A.21 a billable ICD-10-CM code?

No. O9A.21 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O9A.21 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).

O9A.21

O9A.21 — Injury, poisoning and certain other consequences of external causes complicating pregnancy

Non-billable headerICD-10-CM

O9A.21 is a non-billable header ICD-10-CM code for injury, poisoning and certain other consequences of external causes complicating pregnancy. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 inherited from the categories above O9A.21

Also inherited, and the opposite of Excludes1: these conditions are not part of O9A.21, but a patient can have both, so you may code both.

Written on O9A.2 — Injury, poisoning and certain other consequences of external causes complicating pregnancy, childbirth and the puerperium

physical, sexual and psychological abuse complicating pregnancy, childbirth and the puerperium (O9A.3-, O9A.4-, O9A.5-)

Risk adjustment

O9A.21 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.

Code history

O9A.21 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead O9A.21

4 child codes. Green means billable.

Related codes at this level

Codes that share O9A.2. If O9A.21 is not quite right, the correct code is usually one of these.

Questions about O9A.21

Is O9A.21 a billable ICD-10-CM code?: No. O9A.21 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O9A.21 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).