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N70 vs O00

N70 (Salpingitis and oophoritis) compared with O00 (Ectopic 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. N70 carries an Excludes1 note covering O00: “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

N70Salpingitis and oophoritisO00Ectopic pregnancy
Billing statusNon-billable header

Report instead: N70.01, N70.02, N70.03, N70.11, N70.12

Non-billable header

Report instead: O00.00, O00.01, O00.101, O00.102, O00.109

ClassificationN00-N99 — Diseases of the Genitourinary System (N00-N99)O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A)
DefinitionSalpingitis and oophoritis is a non-billable ICD-10-CM category code (N70).Ectopic pregnancy is a non-billable ICD-10-CM category code (O00).
Includes
abscess (of) fallopian tube
abscess (of) ovary
pyosalpinx
salpingo-oophoritis
ruptured ectopic pregnancy
Use additional code
code (B95-B97), to identify infectious agent
code from category O08 to identify any associated complication
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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