ICD-10-CM 2027 diagnosis code

O99.83Other infection carrier state complicating pregnancy, childbirth and the puerperium

Not billable — use a more specific code

O99.83 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.Short description: Oth infection carrier state compl preg/chldbrth

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O99.83

O99.83 is the ICD-10-CM diagnosis code for other infection carrier state complicating pregnancy, childbirth and the puerperium. It belongs to category O99 (other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium), block O94-O9A (other obstetric conditions, not elsewhere classified) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within O99.8, choose O99.83 (Other infection carrier state complicating pregnancy, childbirth and the puerperium) only when documentation doesn't support a more specific option: abnormal glucose complicating pregnancy, childbirth and the puerperium (O99.81), streptococcus B carrier state complicating pregnancy, childbirth and the puerperium (O99.82), bariatric surgery status complicating pregnancy, childbirth and the puerperium (O99.84) and other specified diseases and conditions complicating pregnancy, childbirth and the puerperium (O99.89).

To report this condition, pick the subcode that matches the documentation: O99.830 (pregnancy), O99.834 (childbirth) and O99.835 (puerperium).

Use an additional code to identify the carrier state (Z22.-). Use an additional code to identify specific condition.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under O99.83

Coding notes

Use additional codeAdd a secondary code to fully describe the condition

code to identify the carrier state (Z22.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to O99.83.

› From O99.8 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

Excludes2

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-)

Use additional code

code to identify condition

› From O99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Includes

conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care

Excludes2

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

Use additional code

code to identify specific condition

Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.

Codes whose notes reference O99.83

O98Excludes2

Code history

2016
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2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about O99.83

Is O99.83 billable?: No. O99.83 is a header code. Report one of its more specific subcodes instead.