ICD-10-CM › O00-O9A › O85-O92 › O codes › O91

O91

Infections of breast associated with pregnancy, the puerperium and lactation

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • O91.0 Infection of nipple associated with pregnancy, the puerperium and lactation (also a header)
  • O91.1 Abscess of breast associated with pregnancy, the puerperium and lactation (also a header)
  • O91.2 Nonpurulent mastitis associated with pregnancy, the puerperium and lactation (also a header)

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Infections of breast associated with pregnancy, the puerperium and lactation

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Use additional code

  • code to identify infection

Inherited from the O85-O92 section Complications predominantly related to the puerperium (O85-O92)

Excludes2 - not included here

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • puerperal osteomalacia (M83.0)