ICD-10-CM 2027
ICD-10 code for Thecoma
From the official ICD-10-CM alphabetic index entry “Thecoma”. Page updated September 29, 2026.
About coding Thecoma
The ICD-10-CM code for Thecoma is D27 (Benign neoplasm of ovary). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on D27.
To report this condition, pick the subcode that matches the documentation: D27.0 (ovary), D27.1 (ovary) and D27.9 (ovary).
The conditions in its Excludes2 note aren't part of D27, but may be coded alongside it if the patient has both: corpus albicans cyst (N83.2-), corpus luteum cyst (N83.1-), endometrial cyst (N80.1-), follicular (atretic) cyst (N83.0-) and 3 more.
Use an additional code to identify any functional activity.
More specific Thecoma codes (official index)
Common questions about Thecoma ICD-10 codes
What is the ICD-10 code for Thecoma?
- D27 — Benign neoplasm of ovary (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: D27, C56.
What is the ICD-10 code for luteinized thecoma?
- D27 — Benign neoplasm of ovary (header code; choose a more specific subcode).
What is the ICD-10 code for malignant thecoma?
- C56 — Malignant neoplasm of ovary (header code; choose a more specific subcode).
Is D27 billable?
- No. D27 is a header code. Report one of its more specific subcodes instead.