Is O20.8 a billable ICD-10-CM code?

Yes. O20.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O20.8 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other maternal disorders predominantly related to pregnancy (O20-O29).

What cannot be coded together with O20.8?

O20.8 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 O20.8 (O20) and apply to it just the same.

O20.8

O20.8 — Other hemorrhage in early pregnancy

Billable / specific codeICD-10-CM

O20.8 is a billable, specific ICD-10-CM code for other hemorrhage in early pregnancy. It is valid for submission on a claim.

Excludes1 inherited from the categories above O20.8

These are not written on O20.8, but they bind it: a note on a category applies to every code beneath it. Billing O20.8 with anything listed here is a denial.

Written on O20 — Hemorrhage in early pregnancy

pregnancy with abortive outcome (O00-O08)

Other codes that can never be billed with O20.8

These codes carry an Excludes1 note pointing at O20.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O20.8 alone.

O46Antepartum hemorrhage, not elsewhere classified

Risk adjustment

O20.8 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

O20.8 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

How O20.8 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 O20.8.

Menstruation›during pregnancy
Hemorrhage, hemorrhagic›antepartum›before 20 weeks gestation›specified type NEC
Pregnancy›complicated by›hemorrhage›before 20 completed weeks gestation›specified NEC
Pregnancy›complicated by›hemorrhage›early›specified NEC

Code history

O20.8 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 O20. If O20.8 is not quite right, the correct code is usually one of these.

Questions about O20.8

Is O20.8 a billable ICD-10-CM code?: Yes. O20.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O20.8 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other maternal disorders predominantly related to pregnancy (O20-O29).
What cannot be coded together with O20.8?: O20.8 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 O20.8 (O20) and apply to it just the same.