Is O9A.212 a billable ICD-10-CM code?

Yes. O9A.212 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O9A.212 sit in the tabular list?

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

O9A.212

O9A.212 — Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester

Billable / specific codeICD-10-CM

O9A.212 is a billable, specific ICD-10-CM code for injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester. It is valid for submission on a claim.

Excludes2 inherited from the categories above O9A.212

Also inherited, and the opposite of Excludes1: these conditions are not part of O9A.212, 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.212 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

O9A.212 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A57189Billing and Coding: Serum Magnesium

Code history

O9A.212 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share O9A.21. If O9A.212 is not quite right, the correct code is usually one of these.

Questions about O9A.212

Is O9A.212 a billable ICD-10-CM code?: Yes. O9A.212 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O9A.212 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).