Is O99.03 a billable ICD-10-CM code?

Yes. O99.03 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O99.03 sit in the tabular list?

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

What cannot be coded together with O99.03?

O99.03 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above O99.03 (O99.0) and apply to it just the same.

O99.03

O99.03 — Anemia complicating the puerperium

Billable / specific codeICD-10-CM

O99.03 is a billable, specific ICD-10-CM code for anemia complicating the puerperium. 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.

postpartum anemia not pre-existing prior to delivery (O90.81)

Excludes1 inherited from the categories above O99.03

These are not written on O99.03, but they bind it: a note on a category applies to every code beneath it. Billing O99.03 with anything listed here is a denial.

Written on O99.0 — Anemia complicating pregnancy, childbirth and the puerperium

anemia arising in the puerperium (O90.81)
postpartum anemia NOS (O90.81)

Excludes2 inherited from the categories above O99.03

Also inherited, and the opposite of Excludes1: these conditions are not part of O99.03, but a patient can have both, so you may code both.

Written on O99 — Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

Other codes that can never be billed with O99.03

These codes carry an Excludes1 note pointing at O99.03. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O99.03 alone.

O90.81Anemia of the puerperium

Risk adjustment

O99.03 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 O99.03 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 O99.03.

Valsuani's disease
Puerperal, puerperium›anemia›pre-existing(pre-pregnancy)
Puerperal, puerperium›disease›Valsuani's
Pregnancy›complicated by›anemia›complicating the puerperium

Code history

O99.03 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 O99.0. If O99.03 is not quite right, the correct code is usually one of these.

Questions about O99.03

Is O99.03 a billable ICD-10-CM code?: Yes. O99.03 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O99.03 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).
What cannot be coded together with O99.03?: O99.03 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above O99.03 (O99.0) and apply to it just the same.