2027 ICD-10-CM Diagnosis Code D35.00Benign neoplasm of unspecified adrenal gland
ICD-10-CM Codes›C00–D49›D10-D36›D35
- Billable — Valid for Submission
- Not Chronic
D35.00 is a billable ICD-10-CM diagnosis code for benign neoplasm of unspecified adrenal gland. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 643 through 645. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Adrenal adenoma
- Adrenal cortical adenoma
- Adrenal Cushing's syndrome
- Aldosterone-producing adenoma
- Benign neoplasm of adrenal cortex
- Benign neoplasm of adrenal gland
- Benign neoplasm of adrenal medulla
- Benign pheochromocytoma
- Cushing syndrome due to cortisol-producing adrenocortical adenoma
- Hereditary pheochromocytoma and paraganglioma
- Hyperaldosteronism due to neoplasm of the adrenal cortex
- Hypercortisolism due to adrenal neoplasm
- Hypermelanosis due to neoplasia
- Hypermelanosis due to pheochromocytoma
- Hypertension due to pheochromocytoma
- Myelolipoma of adrenal gland
- Paraganglioma
- Pheochromocytoma
- Pheochromocytoma crisis
- Primary hyperaldosteronism due to adrenal adenoma
- Sporadic pheochromocytoma and secreting paraganglioma
- Tremor due to pheochromocytoma
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to D35.00: its own notes plus those printed at D35 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any functional activity
Notes
General instructions on how these codes are used.
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name D35.00, its category, or a range that includes it.
Code Also 2
These codes say D35.00 may also be needed to fully describe the condition. The note gives no sequencing direction.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Adenoma See Also: Neoplasm, benign, by site;
adrenal (cortical) D35.00
clear cell D35.00
compact cell D35.00
glomerulosa cell D35.00
heavily pigmented variant D35.00
mixed cell D35.00
black D35.00
unspecified site D35.00
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Benign Adrenal Gland Neoplasm
a neoplasm that arises from the adrenal gland and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| adrenal | C74.9 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| adrenal › capsule | C74.9 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| adrenal › cortex | C74.0 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| adrenal › gland | C74.9 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| adrenal › medulla | C74.1 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| cortex › adrenal | C74.0 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| medulla › adrenal | C74.1 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| suprarenal | C74.9 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| suprarenal › capsule | C74.9 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| suprarenal › cortex | C74.0 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| suprarenal › gland | C74.9 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
| suprarenal › medulla | C74.1 | C79.7 | D09.3 | D35.0 | D44.1 | D49.7 |
Patient EducationClinical
Adrenal Gland Disorders
Your adrenal glands are two small organs that sit on top of each kidney. The adrenal glands make different types of hormones you need to stay alive and healthy. Hormones are chemicals that travel in your bloodstream and control how different parts of your body work.
The full article covers:
- What are adrenal glands?
- What are adrenal gland disorders?
- What causes adrenal gland disorders?
- How are adrenal gland disorders diagnosed?
- What are the treatments for adrenal gland disorders?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert D35.00 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D35.00Overview
What is the ICD-10 code for benign neoplasm of unspecified adrenal gland?
The ICD-10-CM code for benign neoplasm of unspecified adrenal gland is D35.00 (sometimes written as D3500). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is D35.00 (Benign neoplasm of adrenal gland) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report benign neoplasm of unspecified adrenal gland on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does D35.00 group to?
When benign neoplasm of unspecified adrenal gland is the principal diagnosis on an inpatient stay, it groups to MS-DRG 644, 645, 643, with relative weights from 0.7461 to 1.6138 depending on complications. Higher weights mean higher Medicare reimbursement.
Can D35.00 be reported with D13.7?
Not as a rule. The Excludes1 note at D35, which applies to D35.00, lists "benign neoplasm of endocrine pancreas (D13.7)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
Does D35.00 need an additional code?
When the condition applies, yes. The Use Additional Code note at D35, which applies to D35.00, reads: code to identify any functional activity. The additional code is reported after D35.00.
