ICD-10-CM 2027
ICD-10 code for perineum breakdown
From the official ICD-10-CM alphabetic index entry “Breakdown › perineum”. Page updated September 29, 2026.
About coding perineum breakdown
The ICD-10-CM code for perineum breakdown is O90.1 (Disruption of perineal obstetric wound).
Within O90 (complications of the puerperium, not elsewhere classified), O90.1 is specifically for disruption of perineal obstetric wound. Related codes cover disruption of cesarean delivery wound (O90.0), hematoma of obstetric wound (O90.2), Peripartum cardiomyopathy (O90.3), postpartum acute kidney failure (O90.4), postpartum thyroiditis (O90.5), postpartum mood disturbance (O90.6), other complications of the puerperium, not elsewhere classified (O90.8) and complication of the puerperium, unspecified (O90.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 769 (Postpartum and Post Abortion Diagnoses with O.R. Procedures, relative weight 1.6673) and DRG 776 (Postpartum and Post Abortion Diagnoses without O.R. Procedures, relative weight 0.6721), in MDC 14 (Pregnancy, Childbirth and the Puerperium), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about perineum breakdown ICD-10 codes
What is the ICD-10 code for perineum breakdown?
- O90.1 — Disruption of perineal obstetric wound.
Is O90.1 billable?
- Yes. O90.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can O90.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict O90.1 as a principal diagnosis.
Is O90.1 a CC or MCC?
- No. O90.1 is neither a CC nor an MCC under MS-DRG v44.0.