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ICD-10-CM · D18.01GeneralSystemic

Venous Lake

Learn about venous lake diagnosis, including clinical documentation, ICD-10 coding (I8789), treatment options, and differential diagnosis. Find information for healthcare professionals on venous lake symptoms, causes, and pathology. This resource provides accurate medical coding and documentation guidance for venous lakes, supporting proper healthcare billing and clinical record keeping. Explore reliable information on this benign vascular lesion for improved patient care and understanding.

Also known as
Venous Lake LesionVenous Pool
Definition

A small, dark blue, benign vascular lesion typically found on the lip or ear.

Clinical signs

Soft, compressible, blue papule. Blanches with pressure.

Common settings

Face, especially lips and ears. Sun-exposed areas in older adults.

Related Codes

ICD-10 Code Families

Complete code families applicable to D18.01

I83-I89
Varicose veins of lower extremities
I70-I79
Diseases of arteries, arterioles and capillaries
L98-L98
Other disorders of skin and subcutaneous tissue
Code Comparison

When to use each related code

DescriptionWhen to use
Venous lake: Dilated venule on lip/face.Solitary, compressible, blue papule on sun-exposed areas, especially lips. No pulsation.
Hemangioma: Benign vascular tumor.Raised, red or bluish lesion, may be present at birth or develop later. Blanches with pressure.
Telangiectasia: Dilated capillaries.Fine, thread-like red lines or patterns on skin. Consider in rosacea, sun damage.
Documentation

Best-practice checklist

  • Venous lake diagnosis: Document lesion's size, color, and location.
  • Confirm diagnosis visually. Dermoscopy or other imaging optional.
  • Venous lake ICD-10: I78.1, Document absence of active bleeding.
  • Differentiate from other vascular lesions. Describe distinct features.
  • Patient history relevant to venous lake development, if known.
Coding & Audit Risks

Common pitfalls to avoid

Unspecified Location

Coding venous lake without specifying the anatomical site (e.g., lip, eyelid) leads to claim rejection and inaccurate data.

Confusion with Hemangioma

Miscoding venous lake as a hemangioma due to similar appearance can impact quality metrics and reimbursement.

Lack of Documentation

Insufficient clinical documentation supporting the diagnosis of venous lake can hinder accurate coding and audit defense.

Mitigation

Best-practice tips

  • 01Precise ICD-10 coding (I8789) for Venous Lake ensures accurate billing.
  • 02Detailed clinical documentation of lesion size, location, color supports CDI.
  • 03Regular patient education on sun protection minimizes Venous Lake development.
  • 04Consistent photographic documentation tracks lesion changes aiding diagnosis and compliance.
  • 05Consider sclerotherapy or laser treatment documentation for compliant reimbursement.
Clinical Decision Support

Step-by-step checklist

  1. 1

    1. Verify solitary, compressible, dark blue papule.

  2. 2

    2. Confirm location on lip, face, or ear.

  3. 3

    3. Check for blanching with diascopy.

  4. 4

    4. Rule out alternative diagnoses (e.g., melanoma, hemangioma).

Documentation Template

Ready-to-paste narrative

Patient presents with a solitary, compressible, dark blue-purple papule consistent with a venous lake.  The lesion, measuring approximately 4mm in diameter, is located on the lower lip vermillion border.  No associated bleeding, pain, or ulceration is noted.  The patient denies any history of trauma to the area.  Differential diagnosis includes venous malformation, angiokeratoma, and melanoma.  Given the clinical presentation and characteristic appearance, the diagnosis of venous lake is favored.  No treatment is indicated at this time as the lesion is asymptomatic.  Patient education provided regarding the benign nature of venous lakes, potential for slow growth, and options for cosmetic treatment if desired in the future.  Follow-up is recommended as needed or for any changes in the lesion.  ICD-10 code I78.1 is documented for this encounter.  Relevant keywords: venous lake, lip, blue lesion, vascular lesion, benign tumor, I78.1, diagnosis, treatment, clinical documentation, medical billing, healthcare, EHR.

Clinical accuracy: This information is provided for documentation and coding guidance and should not replace professional medical judgment.

Coding standard: ICD-10-CM, current FY guidelines.

Venous Lake - AI-Powered ICD-10 Documentation