ICD-10-CM 2027

ICD-10 code for simple ovary cystoma

Other ovarian cysts

Header — needs a more specific code

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

About coding simple ovary cystoma

The ICD-10-CM code for simple ovary cystoma is N83.29 (Other ovarian cysts).

Within N83.2, choose N83.29 (Other ovarian cysts) only when documentation doesn't support a more specific option: unspecified ovarian cysts (N83.20).

To report this condition, pick the subcode that matches the documentation: N83.291 (side), N83.292 (side) and N83.299 (side).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).

What is the ICD-10 code for simple ovary cystoma?: N83.29 — Other ovarian cysts (a header code; report a more specific subcode).
Is N83.29 billable?: No. N83.29 is a header code. Report one of its more specific subcodes instead.