Is O20 a billable ICD-10-CM code?

No. O20 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O20 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?

O20 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

O20

O20 — Hemorrhage in early pregnancy

Non-billable headerICD-10-CM

O20 is a non-billable header ICD-10-CM code for hemorrhage in early pregnancy. 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.

pregnancy with abortive outcome (O00-O08)

Includes

Conditions this code covers.

hemorrhage before completion of 20 weeks gestation

Other codes that can never be billed with O20

These codes carry an Excludes1 note pointing at O20. 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 alone.

O46Antepartum hemorrhage, not elsewhere classified

Risk adjustment

O20 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 O20

3 child codes. Green means billable.

Questions about O20

Is O20 a billable ICD-10-CM code?: No. O20 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O20 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?: O20 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.