D35.00 Benign neoplasm of unspecified adrenal gland
The ICD-10-CM code for Benign neoplasm of unspecified adrenal gland is D35.00 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Chapter
- 2: Neoplasms (C00-D49)
- Section
- D10-D36: Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
- Category D35
- 13 codes (11 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to D35.00:
- Pheochromocytoma › unspecified site
- Adenoma › black
- Adenoma › adrenal (cortical)
- Adenoma › adrenal (cortical) › mixed cell
- Adenoma › adrenal (cortical) › heavily pigmented variant
- Adenoma › adrenal (cortical) › compact cell
- Adenoma › adrenal (cortical) › clear cell
- Adenoma › adrenal (cortical) › glomerulosa cell
U.S. Hospital Utilization
- An estimated 8,895 U.S. inpatient stays in 2023 included D35.00 among the documented diagnoses.
- 215 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Tx of primary site (TOC entry)a. Admission/Encounter for treatment of primary site ............................................................. 33
Tx of secondary site (TOC entry)b. Admission/Encounter for treatment of secondary site .......................................................... 33
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026