O91
O91 — Infections of breast associated with pregnancy, the puerperium and lactation
Non-billable headerICD-10-CM
O91 is a non-billable header ICD-10-CM code for infections of breast associated with pregnancy, the puerperium and lactation. It cannot be billed on its own: choose one of the more specific child codes below.
Use additional code
Add a secondary code to capture the detail described below.
- code to identify infection
Other codes that can never be billed with O91
These codes carry an Excludes1 note pointing at O91. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O91 alone.
- N61Inflammatory disorders of breast
Risk adjustment
O91 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 O91
3 child codes. Green means billable.
Questions about O91
- Is O91 a billable ICD-10-CM code?
- No. O91 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does O91 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Complications predominantly related to the puerperium (O85-O92).