Is O10.91 a billable ICD-10-CM code?

No. O10.91 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O10.91 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16).

O10.91

O10.91 — Unspecified pre-existing hypertension complicating pregnancy

Non-billable headerICD-10-CM

O10.91 is a non-billable header ICD-10-CM code for unspecified pre-existing hypertension complicating pregnancy. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

O10.91 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 O10.91

4 child codes. Green means billable.

Related codes at this level

Codes that share O10.9. If O10.91 is not quite right, the correct code is usually one of these.

Questions about O10.91

Is O10.91 a billable ICD-10-CM code?: No. O10.91 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O10.91 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16).