D27.9 — Benign neoplasm of unspecified ovary
Is D27.9 billable?
Yes, but D27.9 is an unspecified code. D27.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, D27.9 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 D27.9 — the more specific alternatives are listed below.
More specific alternatives
D27.9 at a glance
| Code | D27.9 |
|---|---|
| Description | Benign neoplasm of unspecified ovary |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D27.9 group to?
D27.9 sits in MDC 13 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.
- 742Uterine and Adnexa Procedures for Non-Malignancy with CC/MCCsurgical
- 743Uterine and Adnexa Procedures for Non-Malignancy without CC/MCCsurgical
How is D27.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D27.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Adenofibroma › endometrioid
- Adenofibroma › unspecified site
- Brenner › tumor
- Cyst › pseudomucinous (colloid) (mucous) (simple) (retention)
- Cystadenofibroma › endometrioid
- Cystadenofibroma › unspecified site
- Tumor › Brenner
- Adenofibroma › mucinous › unspecified site
- Adenofibroma › papillary › unspecified site
- Adenofibroma › serous › unspecified site
- Cyst › ovary, ovarian › dermoid (colloid) (mucous) (simple) (retention)
- Cyst › ovary, ovarian › pseudomucinous (colloid) (mucous) (simple) (retention)
Use additional code — inherited from D27
Report an additional code alongside D27.9 to fully describe the condition. D27.9 is sequenced first.
- code to identify any functional activity.
Excludes2 — not included here — inherited from D27
The conditions below are not part of D27.9, but a patient may have both at the same time. When documentation supports it, D27.9 and the excluded code may both be reported.
How long has D27.9 existed?
D27.9 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.