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O90

O90Complications of the puerperium, not elsewhere classified

Non-billable headerICD-10-CM

O90 is a non-billable header ICD-10-CM code for complications of the puerperium, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with O90

These codes carry an Excludes1 note pointing at O90. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O90 alone.

  • N84Polyp of female genital tract
  • N85.2Hypertrophy of uterus
  • N85.3Subinvolution of uterus
  • O71.0Rupture of uterus (spontaneous) before onset of labor
  • O71.1Rupture of uterus during labor
  • O99.0Anemia complicating pregnancy, childbirth and the puerperium
  • O99.03Anemia complicating the puerperium
  • O99.4Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium

Risk adjustment

O90 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 O90

9 child codes. Green means billable.

Questions about O90

Is O90 a billable ICD-10-CM code?
No. O90 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O90 sit in the tabular list?
Pregnancy, childbirth and the puerperium (O00-O9A), in the block Complications predominantly related to the puerperium (O85-O92).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.