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N73 vs O08.0

N73 (Other female pelvic inflammatory diseases) compared with O08.0 (Genital tract and pelvic infection following ectopic and molar pregnancy), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.

Can these codes be reported together?

No — do not report together. N73 carries an Excludes1 note covering O08.0: “abortion or ectopic or molar pregnancy (O00-O07, O08.0)”

Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Side by side

N73Other female pelvic inflammatory diseasesO08.0Genital tract and pelvic infection following ectopic and molar pregnancy
Billing statusNon-billable header

Report instead: N73.0, N73.1, N73.2, N73.3, N73.4

Billable
ClassificationN00-N99 — Diseases of the Genitourinary System (N00-N99)O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A)
DefinitionOther female pelvic inflammatory diseases is a non-billable ICD-10-CM category code (N73).Genital tract and pelvic infection following ectopic and molar pregnancy is a billable ICD-10-CM diagnosis code (O08.0).
Includes
Endometritis following ectopic and molar pregnancy
Oophoritis following ectopic and molar pregnancy
Parametritis following ectopic and molar pregnancy
Pelvic peritonitis following ectopic and molar pregnancy
Use additional code
code (B95-B97), to identify infectious agent.

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources