MCMedicalCodingSoftware
O99.825

O99.825: Streptococcus B carrier state complicating the puerperium

Billable / specific codeICD-10-CM

O99.825 is a billable, specific ICD-10-CM code for streptococcus b carrier state complicating the puerperium. It is valid for submission on a claim.

Check O99.825 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above O99.825

A category’s note binds every code beneath it.

Written on O99.82: Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium

  • Carrier of streptococcus group B (GBS) in a nonpregnant woman (Z22.330)

Excludes2 inherited from the categories above O99.825

Not part of this code, but both may be coded when both are present.

Written on O99.8: Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

  • genitourinary infections in pregnancy (O23.-)
  • infection of genitourinary tract following delivery (O86.1-O86.4)
  • malignant neoplasm complicating pregnancy, childbirth and the puerperium (O9A.1-)
  • maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)
  • postpartum acute kidney failure (O90.49)
  • traumatic injuries in pregnancy (O9A.2-)

Written on O99: Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

  • when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

O99.825 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57189Billing and Coding: Serum Magnesium

Alphabetic index entries that lead here

  • Puerperal, puerperium›infection›maternal›streptococcus group B carrier state(GBS)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under O99.82

ICD-10-CMFY2027· effective October 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.