N73 — Other female pelvic inflammatory diseases
Is N73 billable?
No — N73 is a non-billable header code. N73 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 9 billable codes beneath N73.
Billable codes under this header
- N73.0Acute parametritis and pelvic cellulitis
- N73.1Chronic parametritis and pelvic cellulitis
- N73.2Unspecified parametritis and pelvic cellulitis
- N73.3Female acute pelvic peritonitis
- N73.4Female chronic pelvic peritonitis
- N73.5Female pelvic peritonitis, unspecified
- N73.6Female pelvic peritoneal adhesions (postinfective)
- N73.8Other specified female pelvic inflammatory diseases
- N73.9Female pelvic inflammatory disease, unspecified
N73 at a glance
| Code | N73 |
|---|---|
| Description | Other female pelvic inflammatory diseases |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Use additional code
Report an additional code alongside N73 to fully describe the condition. N73 is sequenced first.
- code (B95-B97), to identify infectious agent.
Excludes1 — never code together — inherited from N70-N77
The conditions below can never be reported together with N73 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N73, but a patient may have both at the same time. When documentation supports it, N73 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Code also — inherited from N70-N77
Two codes may be needed to describe the condition fully. Whether N73 is sequenced first depends on the reason for the encounter.
- , if applicable, pelvic abscess (K6A.0-)
What codes fall under N73? (9)
- N73.0Acute parametritis and pelvic cellulitis
- N73.1Chronic parametritis and pelvic cellulitis
- N73.2Unspecified parametritis and pelvic cellulitis
- N73.3Female acute pelvic peritonitis
- N73.4Female chronic pelvic peritonitis
- N73.5Female pelvic peritonitis, unspecified
- N73.6Female pelvic peritoneal adhesions (postinfective)
- N73.8Other specified female pelvic inflammatory diseases
- N73.9Female pelvic inflammatory disease, unspecified
How long has N73 existed?
N73 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.