Is O30.012 a billable ICD-10-CM code?

Yes. O30.012 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does O30.012 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48).

What cannot be coded together with O30.012?

O30.012 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 O30.012 (O30.01) and apply to it just the same.

O30.012

O30.012 — Twin pregnancy, monochorionic/monoamniotic, second trimester

Billable / specific codeICD-10-CM

O30.012 is a billable, specific ICD-10-CM code for twin pregnancy, monochorionic/monoamniotic, second trimester. It is valid for submission on a claim.

Excludes1 inherited from the categories above O30.012

These are not written on O30.012, but they bind it: a note on a category applies to every code beneath it. Billing O30.012 with anything listed here is a denial.

Written on O30.01 — Twin pregnancy, monochorionic/monoamniotic

conjoined twins (O30.02-)

Risk adjustment

O30.012 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 history

O30.012 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 O30.01. If O30.012 is not quite right, the correct code is usually one of these.

Questions about O30.012

Is O30.012 a billable ICD-10-CM code?: Yes. O30.012 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does O30.012 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48).
What cannot be coded together with O30.012?: O30.012 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 O30.012 (O30.01) and apply to it just the same.