N73.9 — Female pelvic inflammatory disease, unspecified
N73.9

What this code means
Pelvic inflammatory disease (PID) is infection of the uterus, fallopian tubes or ovaries, usually sexually transmitted.
Also called: pelvic inflammatory disease, pid.
When this code is used
Used for female pelvic inflammatory disease, unspecified.
Where it sits in ICD-10-CM
Code N73.9 belongs to Chapter 14: Diseases of the genitourinary system, which covers codes N00–N99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
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Frequently asked questions
What is ICD-10-CM code N73.9?
N73.9 is the ICD-10-CM diagnosis code for “Female pelvic inflammatory disease, unspecified”. Pelvic inflammatory disease (PID) is infection of the uterus, fallopian tubes or ovaries, usually sexually transmitted.
When is code N73.9 used?
Used for female pelvic inflammatory disease, unspecified. It belongs to Chapter 14 of ICD-10-CM (Diseases of the genitourinary system).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.
More codes in Chapter 14
N02.8 — Recurrent and persistent hematuria with other morphologic changes
N02.B1 — Recurrent and persistent immunoglobulin A nephropathy with glomerular lesion
N04.9 — Nephrotic syndrome with unspecified morphologic changes
N05.9 — Unspecified nephritic syndrome with unspecified morphologic changes
N10 — Acute pyelonephritis
N12 — Tubulo-interstitial nephritis, not specified as acute or chronic