ICD-10-CM 2027
ICD-10 code for round ligament abscess
From the official ICD-10-CM alphabetic index entry “Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › round ligament”. Page updated September 29, 2026.
About coding round ligament abscess
The ICD-10-CM code for round ligament abscess is N73.2 (Unspecified parametritis and pelvic cellulitis).
Within N73, choose N73.2 (Unspecified parametritis and pelvic cellulitis) only when documentation doesn't support a more specific option: acute parametritis and pelvic cellulitis (N73.0), chronic parametritis and pelvic cellulitis (N73.1), female acute pelvic peritonitis (N73.3), female chronic pelvic peritonitis (N73.4), female pelvic peritonitis, unspecified (N73.5), female pelvic peritoneal adhesions (postinfective) (N73.6), other specified female pelvic inflammatory diseases (N73.8) and female pelvic inflammatory disease, unspecified (N73.9).
Use an additional code (B95-B97), to identify infectious agent.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about round ligament abscess ICD-10 codes
What is the ICD-10 code for round ligament abscess?
- N73.2 — Unspecified parametritis and pelvic cellulitis.
Is N73.2 billable?
- Yes. N73.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N73.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N73.2 as a principal diagnosis.
Is N73.2 a CC or MCC?
- No. N73.2 is neither a CC nor an MCC under MS-DRG v44.0.