ICD-10-CM 2027
ICD-10 code for chronic oophoritis
From the official ICD-10-CM alphabetic index entry “Oophoritis (cystic) (infectional) (interstitial) › chronic”. Page updated September 29, 2026.
About coding chronic oophoritis
The ICD-10-CM code for chronic oophoritis is N70.12 (Chronic oophoritis). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on N70.12.
Within N70.1 (chronic salpingitis and oophoritis), N70.12 is specifically for chronic oophoritis. Related codes cover salpingitis (N70.11) and salpingitis and oophoritis (N70.13).
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.
More specific chronic oophoritis codes (official index)
- with salpingitis N70.13 — Chronic salpingitis and oophoritis
Common questions about chronic oophoritis ICD-10 codes
What is the ICD-10 code for chronic oophoritis?
- N70.12 — Chronic oophoritis. More specific codes apply when the documentation supports them: N70.13.
Is N70.12 billable?
- Yes. N70.12 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N70.12 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N70.12 as a principal diagnosis.
Is N70.12 a CC or MCC?
- No. N70.12 is neither a CC nor an MCC under MS-DRG v44.0.