Is O99.0 a billable ICD-10-CM code?

No. O99.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O99.0 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 O99.0?

O99.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

O99.0

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

Non-billable headerICD-10-CM

O99.0 is a non-billable header ICD-10-CM code for anemia complicating pregnancy, childbirth and the puerperium. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Inclusion terms

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

Conditions in D50-D64

Other codes that can never be billed with O99.0

These codes carry an Excludes1 note pointing at O99.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O99.0 alone.

O90.81Anemia of the puerperium

Risk adjustment

O99.0 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.

Code to one of these instead O99.0

3 child codes. Green means billable.

Related codes at this level

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

Questions about O99.0

Is O99.0 a billable ICD-10-CM code?: No. O99.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O99.0 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 O99.0?: O99.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.