ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
DiagnosesAngiolipoma

Angiolipoma

ICD-10 Coding for Angiolipoma(D17.9, D17.21)

PRIMARY SPECIALTYSurgery
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Angiolipoma?
Essential facts and insights about Angiolipoma

Key Clinical Considerations:

  • Presence of a soft tissue mass that is typically painless and may be located in subcutaneous tissue, often on the trunk or extremities.
  • Histological examination revealing a well-circumscribed tumor composed of mature adipocytes and vascular structures.
  • Physical examination may show a firm, mobile mass that is not adherent to underlying structures.
  • Ultrasound or MRI may demonstrate a well-defined, hypoechoic or hyperintense lesion with vascularity.
  • Severity is generally not staged, but size and symptoms may guide treatment decisions.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Complete medical history including onset, duration, and characteristics of the mass.
  • Specific terminology such as 'angiolipoma' must be used to ensure accurate coding.
  • Examples include: 'Patient presents with a painless subcutaneous mass diagnosed as angiolipoma.'
  • Documentation must support the medical necessity for any surgical intervention or imaging studies.
  • Quality measures may include tracking the size of the lesion and patient-reported outcomes post-treatment.

Coding Guidelines

Usage Guidelines & Examples

  • Use D17.9 for unspecified lipomatous neoplasm when the specific type is not documented.
  • Do not use D17.21 if the lesion is not confirmed as an angiolipoma or if it is a different type of lipoma.
  • D17.21 is specific for angiolipoma, while D17.0-D17.8 covers other types of lipomas.
  • Common errors include misclassifying angiolipoma as a malignant neoplasm; ensure histological confirmation.
  • In complex cases, consider the patient's full clinical picture and any co-existing conditions that may affect coding.

Code Exclusions

Important Exclusions

  • Malignant neoplasms of adipose tissue (e.g., liposarcoma) are explicitly excluded.
  • Use D17.0 for other types of lipomas that do not have vascular components.
  • Conditions are excluded to ensure accurate representation of the tumor type and treatment needs.
  • Avoid confusion with other benign tumors by ensuring clear documentation of histological findings.
  • Related but distinct conditions include hemangiomas and other vascular tumors.

Related ICD-10 Codes

Primary Codes
D17.21
Angiolipoma, a benign neoplasm of adipose tissue with vascular components
D17.9
Lipomatous neoplasm, unspecified
Differential Codes
D30.0
D18.0

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Surgery

Specialty Applications

  • Patients with soft tissue masses suspected to be benign.
  • Typically affects adults, but can occur in children; no specific gender predilection.
  • Clinical settings include outpatient surgical consultations and inpatient surgical procedures.
  • Relevant for surgical specialties, particularly those focusing on soft tissue tumors.
  • Treatment contexts include excisional biopsy or surgical removal of symptomatic lesions.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Patient diagnosed with angiolipoma based on clinical findings and imaging results.'

Template 2

Template: 'Clinical presentation consistent with angiolipoma including a firm, painless mass.'

Template 3

Template: 'Diagnostic criteria for angiolipoma met as evidenced by histological examination.'

Template 4

Template: 'Treatment plan initiated for angiolipoma with excisional biopsy scheduled.'

Template 5

Template: 'Follow-up care for angiolipoma including monitoring for recurrence and symptom management.'

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this diagnosis?

Detailed documentation of clinical findings, imaging results, and histological confirmation is required.

How does this differ from similar diagnoses?

Angiolipoma is characterized by its vascular component, differentiating it from standard lipomas.

What are common billing considerations?

Ensure that the procedure performed is medically necessary and well-documented to optimize claims.

What procedures are typically associated?

CPT codes for excisional biopsy or surgical removal are commonly associated with angiolipoma.

Are there any quality reporting implications?

Quality measures may include tracking surgical outcomes and patient satisfaction post-treatment.