ICD-10-CM 2027 diagnosis code

O99.89Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

Not billable — use a more specific code

O99.89 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 diseases and conditions compl preg/chldbrth

Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O99.89

O99.89 is the ICD-10-CM diagnosis code for other specified diseases and conditions 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 O99.89 (Other specified diseases and conditions 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), other infection carrier state complicating pregnancy, childbirth and the puerperium (O99.83) and bariatric surgery status complicating pregnancy, childbirth and the puerperium (O99.84).

To report this condition, pick the subcode that matches the documentation: O99.891 (pregnancy), O99.892 (childbirth) and O99.893 (puerperium).

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 changed in FY2021 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 646.83 (other specified complications of pregnancy, antepartum condition or complication) and 646.93 (unspecified complication of pregnancy, antepartum condition or complication).

Specific codes under O99.89

Notes that apply from higher levels

Instructions written at a parent level also apply to O99.89.

› 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.

ICD-9-CM equivalent

Converter →

646.83Other specified complications of pregnancy, antepartum condition or complicationapproximate
646.93Unspecified complication of pregnancy, antepartum condition or complicationapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
FY2021 (effective 10/1/2020): Expanded — no longer billable

Common questions about O99.89

Is O99.89 billable?: No. O99.89 is a header code. Report one of its more specific subcodes instead.
What is the ICD-9 code for O99.89?: The CMS General Equivalence Mappings map O99.89 to ICD-9-CM 646.83 and 646.93.