N73 vs O86

N73 (Other female pelvic inflammatory diseases) compared with O86 (Other puerperal infections), 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 O86: “pregnancy, childbirth and the puerperium (O23.-, O75.3, O85, O86.-)”

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 diseases	O86Other puerperal infections
Billing status	Non-billable header Report instead: N73.0, N73.1, N73.2, N73.3, N73.4	Non-billable header Report instead: O86.00, O86.01, O86.02, O86.03, O86.04
Classification	N00-N99 — Diseases of the Genitourinary System (N00-N99)	O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A)
Definition	Other female pelvic inflammatory diseases is a non-billable ICD-10-CM category code (N73).	Other puerperal infections is a non-billable ICD-10-CM category code (O86).
Use additional code	code (B95-B97), to identify infectious agent.	code (B95-B97), to identify infectious agent

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