O03.0 Genital tract and pelvic infection following incomplete spontaneous abortion
The ICD-10-CM code for Genital tract and pelvic infection following incomplete spontaneous abortion is O03.0 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- O00-O08: Pregnancy with abortive outcome (O00-O08)
- Category O03
- 31 codes (28 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to O03.0:
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › oophoritis
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › parametritis
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › salpingitis or salpingo-oophoritis
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › endometritis
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › pelvic peritonitis
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › genital tract and pelvic infection
- Abortion (complete) (spontaneous) › incomplete (spontaneous) › complicated (by) (following) › infection › genital tract or pelvic
Inclusion Terms
- Endometritis following incomplete spontaneous abortion
- Oophoritis following incomplete spontaneous abortion
- Parametritis following incomplete spontaneous abortion
- Pelvic peritonitis following incomplete spontaneous abortion
- Salpingitis following incomplete spontaneous abortion
- Salpingo-oophoritis following incomplete spontaneous abortion
U.S. Hospital Utilization
- An estimated 515 U.S. inpatient stays in 2023 included O03.0 among the documented diagnoses.
- 310 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Z3A—do not assign for O00-O08, Z33.2, or postpartum conditionsCategory Z3A codes should not be assigned for pregnancies with abortive outcomes (categories O00- O08), elective termination of pregnancy (code Z33.2), nor for postpartum conditions, as category Z3A is not applicable to these conditions.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026