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ICD-10-CM 2027

ICD-10 code for ovary teratoma

D27

Benign neoplasm of ovary

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Teratoma (solid) › ovary”. Page updated September 29, 2026.

About coding ovary teratoma

The ICD-10-CM code for ovary teratoma is D27 (Benign neoplasm of ovary). The official index lists 1 more specific code, 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 ovary teratoma codes (official index)

  • embryonal, immature or malignant C56 — Malignant neoplasm of ovary

Common questions about ovary teratoma ICD-10 codes

What is the ICD-10 code for ovary teratoma?

D27 — Benign neoplasm of ovary (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: C56.

Is D27 billable?

No. D27 is a header code. Report one of its more specific subcodes instead.