N80.B39 — Endometriosis of diaphragm, unspecified depth
Is N80.B39 billable?
Yes, but N80.B39 is an unspecified code. N80.B39 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, N80.B39 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting N80.B39 — the more specific alternatives are listed below.
More specific alternatives
N80.B39 at a glance
| Code | N80.B39 |
|---|---|
| Description | Endometriosis of diaphragm, unspecified depth |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does N80.B39 group to?
N80.B39 sits in MDC 04 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 205Other Respiratory System Diagnoses with MCCmedical
- 206Other Respiratory System Diagnoses without MCCmedical
How is N80.B39 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to N80.B39. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Endometriosis › diaphragm
- Endometriosis › diaphragm › unspecified depth
Inclusion terms
Alternative wording in documentation that is classified to N80.B39.
- Endometriosis of the diaphragm NOS
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N80.B39, but a patient may have both at the same time. When documentation supports it, N80.B39 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 N80.B
Two codes may be needed to describe the condition fully. Whether N80.B39 is sequenced first depends on the reason for the encounter.
How long has N80.B39 existed?
N80.B39 first appears in FY2023.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.