2026 ICD-10-CM Diagnosis Code D17.9Benign lipomatous neoplasm, unspecified

ICD-10-CM Codes›C00–D49›D10-D36›D17

ICD-10-CM D17.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D17.9 is a billable ICD-10-CM diagnosis code for benign lipomatous neoplasm, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.

Code Identity

ICD-10-CM Code
D17.9
Billable Status
Yes — Valid for Submission
Code Describes
Benign lipomatous neoplasm, unspecified
Short Description
Benign lipomatous neoplasm, unspecified
Same as the full description in the CMS dataset.
Parent Code
D17
Benign lipomatous neoplasm

Code Classification

ChapterC00–D49Neoplasms
SectionD10-D36Benign neoplasms, except benign neuroendocrine tumors
CategoryD17Benign lipomatous neoplasm
This CodeD17.9Benign lipomatous neoplasm, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Angiolipoma
  • Angiomyolipoma
  • Atypical spindle cell lipoma
  • Benign lipomatous tumor
  • Cellular angiolipoma
  • Chondrolipoma
  • CLOVE syndrome
  • Epithelioid angiomyolipoma
  • Familial angiolipomatosis
  • Hibernoma
  • Intracortical lipoma
  • Intramuscular lipoma
  • Lipoblastoma
  • Lipoblastoma/lipoblastomatosis
  • Lipoblastomatosis
  • Lipoma
  • Lipoma co-occurrent with spina bifida
  • Lipoma of skin
  • Lipomatous tumor
  • Multiple lipomata
  • Myolipoma
  • Neoplasm of adipose tissue
  • Pedunculated lipoma
  • Pleomorphic lipoma
  • Spindle cell lipoma
  • Subcutaneous lipoma

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Lipoma NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Fibromyxolipoma
    • Lipoma
    • Lipoma
      • fetal
    • Lipoma
      • fetal
        • fat cell
    • Lipoma
      • infiltrating
    • Lipoma
      • intramuscular
    • Lipoma
      • pleomorphic
    • Lipoma
      • site classification
        • unspecified
    • Lipoma
      • spindle cell
    • Myxolipoma

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO073
Benign neoplasms
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Angiomyolipoma

    a benign tumor containing vascular, adipose, and muscle elements. it occurs most often in the kidney with smooth muscle elements (angiolipoleiomyoma) in association with tuberous sclerosis. (dorland, 27th ed)

  • Lipoblastoma

    benign tumors of fatty tissues found in infancy and childhood. it is associated chromosomal aberrations that result in activation of an oncogene on chromosome band 8q12.

  • Angiolipoma

    a benign neoplasm composed of a mixture of adipose tissue and blood vessels. (dorland, 27th ed)

  • Adiposis Dolorosa

    a rare disease characterized by multiple tumor-like fatty deposits that press on nerves in various sites causing pain and weakness. often these lipoma-like structures are located on the trunk and limbs but not on the face and hands.

  • Familial Multiple Lipomatosis

    a rare autosomal disorder characterized by numerous encapsulated lipomas on the trunk and extremities. the lipomas are usually not painful but can cause pain when growing. in rare cases, one lipoma can become painful and progress to multiple painful lipomas; it is then referred to as dercum's disease type iii

  • Lipoma

    a benign tumor composed of fat cells (adipocytes). it can be surrounded by a thin layer of connective tissue (encapsulated), or diffuse without the capsule.

  • Lipomatosis

    a disorder characterized by the accumulation of encapsulated or unencapsulated tumor-like fatty tissue resembling lipoma.

  • Lipomatosis, Multiple Symmetrical

    a condition characterized by the growth of unencapsulated masses of adipose tissue symmetrically deposited around the neck, shoulders, or other sites around the body.

  • Liposarcoma

    a malignant tumor derived from primitive or embryonal lipoblastic cells. it may be composed of well-differentiated fat cells or may be dedifferentiated: myxoid (liposarcoma, myxoid), round-celled, or pleomorphic, usually in association with a rich network of capillaries. recurrences are common and dedifferentiated liposarcomas metastasize to the lungs or serosal surfaces. (from dorland, 27th ed; stedman, 25th ed)

  • Adipocytes

    cells in the body that store fats, usually in the form of triglycerides. white adipocytes are the predominant type and found mostly in the abdominal cavity and subcutaneous tissue. brown adipocytes are thermogenic cells that can be found in newborns of some species and hibernating mammals.

  • Adipose Tissue

    specialized connective tissue composed of fat cells (adipocytes). it is the site of stored fats, usually in the form of triglycerides. in mammals, there are two types of adipose tissue, the white fat and the brown fat. their relative distributions vary in different species with most adipose tissue being white.

Patient EducationClinical

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert D17.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
214.9 Lipoma NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D17.9Overview

Is D17.9 (Benign lipomatous neoplasm) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report benign lipomatous neoplasm, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D17.9 group to?

When benign lipomatous neoplasm, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, with relative weights from 0.9064 to 1.5132 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D17.9?

Under the General Equivalence Mappings, benign lipomatous neoplasm, unspecified converts to ICD-9-CM 214.9 (lipoma NOS). The mapping is a direct match.

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.