Is O77 a billable ICD-10-CM code?

No. O77 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O77 sit in the tabular list?

Pregnancy, childbirth and the puerperium (O00-O9A), in the block Complications of labor and delivery (O60-O77).

O77

O77 — Other fetal stress complicating labor and delivery

Non-billable headerICD-10-CM

O77 is a non-billable header ICD-10-CM code for other fetal stress complicating labor and delivery. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with O77

These codes carry an Excludes1 note pointing at O77. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O77 alone.

O68Labor and delivery complicated by abnormality of fetal acid-base balance
O76Abnormality in fetal heart rate and rhythm complicating labor and delivery

Risk adjustment

O77 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 O77

4 child codes. Green means billable.

Questions about O77

Is O77 a billable ICD-10-CM code?: No. O77 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O77 sit in the tabular list?: Pregnancy, childbirth and the puerperium (O00-O9A), in the block Complications of labor and delivery (O60-O77).