2026 ICD-10-CM Diagnosis Code D44.10Neoplasm of uncertain behavior of unspecified adrenal gland
ICD-10-CM Codes›C00–D49›D37-D48›D44
- Billable — Valid for Submission
- Not Chronic
D44.10 is a billable ICD-10-CM diagnosis code for neoplasm of uncertain behavior of unspecified adrenal gland. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 643 through 645. Coders also document this condition as neoplasm of uncertain behavior of adrenal cortex. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neoplasms of unspecified nature or uncertain behavior.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Neoplasm of uncertain behavior of adrenal cortex
- Neoplasm of uncertain behavior of adrenal gland
- Neoplasm of uncertain behavior of adrenal medulla
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Aldosteronoma - D44.10
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Aldosteronoma
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 | C74.0 | 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 | C74.1 | 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 D44.10 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D44.10Overview
Is D44.10 (Neoplasm of uncertain behavior of adrenal gland) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report neoplasm of uncertain behavior of unspecified adrenal gland on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does D44.10 group to?
When neoplasm of uncertain behavior of unspecified adrenal gland is the principal diagnosis on an inpatient stay, it groups to MS-DRG 643, 644, 645, with relative weights from 0.7683 to 1.6461 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of D44.10?
Under the General Equivalence Mappings, neoplasm of uncertain behavior of unspecified adrenal gland converts to ICD-9-CM 237.2 (unc behav neo adrenal). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
