ICD-10-CM 2027
ICD-10 code for adrenal cortical adenoma
From the official ICD-10-CM alphabetic index entry “Adenoma › adrenal (cortical)”. Page updated September 29, 2026.
About coding adrenal cortical adenoma
The ICD-10-CM code for adrenal cortical adenoma is D35.00 (Benign neoplasm of unspecified adrenal gland). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on D35.00.
Within D35.0, choose D35.00 (unspecified adrenal gland) only when documentation doesn't support a more specific option: right adrenal gland (D35.01) and left adrenal gland (D35.02).
Use an additional code to identify any functional activity.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific adrenal cortical adenoma codes (official index)
- clear cell D35.00 — Benign neoplasm of unspecified adrenal gland
- compact cell D35.00 — Benign neoplasm of unspecified adrenal gland
- glomerulosa cell D35.00 — Benign neoplasm of unspecified adrenal gland
- heavily pigmented variant D35.00 — Benign neoplasm of unspecified adrenal gland
- mixed cell D35.00 — Benign neoplasm of unspecified adrenal gland
Common questions about adrenal cortical adenoma ICD-10 codes
What is the ICD-10 code for adrenal cortical adenoma?
- D35.00 — Benign neoplasm of unspecified adrenal gland. More specific codes apply when the documentation supports them: D35.00, D35.00, D35.00, D35.00 and others below.
What is the ICD-10 code for clear cell adrenal cortical adenoma?
- D35.00 — Benign neoplasm of unspecified adrenal gland.
What is the ICD-10 code for compact cell adrenal cortical adenoma?
- D35.00 — Benign neoplasm of unspecified adrenal gland.
What is the ICD-10 code for glomerulosa cell adrenal cortical adenoma?
- D35.00 — Benign neoplasm of unspecified adrenal gland.
What is the ICD-10 code for heavily pigmented variant adrenal cortical adenoma?
- D35.00 — Benign neoplasm of unspecified adrenal gland.
What is the ICD-10 code for mixed cell adrenal cortical adenoma?
- D35.00 — Benign neoplasm of unspecified adrenal gland.
Is D35.00 billable?
- Yes. D35.00 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D35.00 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D35.00 as a principal diagnosis.
Is D35.00 a CC or MCC?
- No. D35.00 is neither a CC nor an MCC under MS-DRG v44.0.