D35.00 Benign neoplasm of unspecified adrenal gland

Billable ICD-10-CM code, FY2026.

Applies from D35 Benign neoplasm of other and unspecified endocrine glands

Excludes1 (never code together)

• benign neoplasm of endocrine pancreas (D13.7)
• benign neoplasm of ovary (D27.-)
• benign neoplasm of testis (D29.2.-)
• benign neoplasm of thymus (D15.0)

Use additional code

• code to identify any functional activity

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 227.0 Benign neoplasm of adrenal gland (approximate)

Code annotations containing back-references to D35.00

Back-references to D35.0

• Code Also: E26.01 Conn's syndrome ("adrenal adenoma (D35.0-)")
• Code Also: E27.5 Adrenomedullary hyperfunction ("pheochromocytoma (benign) (D35.0-)")

Diagnosis Index entries for D35.00

• Adenoma › adrenal (cortical)
• Adenoma › adrenal (cortical) › clear cell
• Adenoma › adrenal (cortical) › compact cell
• Adenoma › adrenal (cortical) › glomerulosa cell
• Adenoma › adrenal (cortical) › heavily pigmented variant
• Adenoma › adrenal (cortical) › mixed cell
• Adenoma › black
• Pheochromocytoma › unspecified site

Nearby codes

• D35 Benign neoplasm of other and unspecified endocrine glands
• D35.0 Benign neoplasm of adrenal gland
• D35.00 Benign neoplasm of unspecified adrenal gland (this code)
• D35.01 Benign neoplasm of right adrenal gland
• D35.02 Benign neoplasm of left adrenal gland
• D35.1 Benign neoplasm of parathyroid gland
• D35.2 Benign neoplasm of pituitary gland
• D35.3 Benign neoplasm of craniopharyngeal duct