2026 ICD-10-CM Diagnosis Code I83.899Varicose veins of unspecified lower extremity with other complications

ICD-10-CM Codes›I00–I99›I80-I89›I83

ICD-10-CM I83.899
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I83.899 is a billable ICD-10-CM diagnosis code for varicose veins of unspecified lower extremity with other complications. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 299 through 301. The code is restricted by the Medicare Code Editor to adult patients (age 15 through 124). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Varicose veins of lower extremity.

Code Identity

ICD-10-CM Code
I83.899
Billable Status
Yes — Valid for Submission
Code Describes
Varicose veins of unspecified lower extremity with other complications
Short Description
Varicos vn unsp lower extremity with other complications
Parent Code
I83.89
Varicose veins of lower extremities with other complications

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
CategoryI83Varicose veins of lower extremities
This CodeI83.899Varicose veins of unspecified lower extremity with other complications

Code EditsBilling

Medicare Code Editor checks that affect claim validity for I83.899.

Adult diagnoses
The Medicare Code Editor detects inconsistencies in adult cases by checking a patient's age and any diagnosis on the patient's record. The adult code edits apply to patients age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Dilated subcutaneous veins
  • Hemosiderin pigmentation of lower limb due to varicose veins of lower limb
  • Idiopathic livedo reticularis
  • Idiopathic livedo reticularis with summer ulceration
  • Livedo reticularis
  • Livedoid vasculopathy of lower limb due to varicose veins of lower limb
  • Pigmentation of skin or mucosa
  • Rupture of vein
  • Ruptured varicose veins
  • Skin pigmentation
  • Varicose vein of lower limb with long saphenous vein distribution
  • Varicose vein of lower limb with short saphenous vein distribution
  • Varicose veins of lower limb co-occurrent with edema
  • Varicose veins of lower limb with nontruncal reflux

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.

    • Varix(lower limb)
      • with
        • bleeding
    • Varix(lower limb)
      • with
        • edema
    • Varix(lower limb)
      • with
        • rupture
    • Varix(lower limb)
      • with
        • specified complication NEC
    • Varix(lower limb)
      • with
        • swelling
    • Varix(lower limb)
      • leg (asymptomatic)
        • with
          • edema
    • Varix(lower limb)
      • leg (asymptomatic)
        • with
          • specified complication NEC
    • Varix(lower limb)
      • leg (asymptomatic)
        • with
          • swelling

Clinical ClassificationClinical

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

CCSR CIR035
Varicose veins of lower extremity
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Livedo Reticularis

    a condition characterized by a reticular or fishnet pattern on the skin of lower extremities and other parts of the body. this red and blue pattern is due to deoxygenated blood in unstable dermal blood vessels. the condition is intensified by cold exposure and relieved by rewarming.

  • Livedoid Vasculopathy

    a rare cutaneous thrombotic disease due to occlusion of dermal vessels. it is characterized by purpuric maculae and ulcerations especially during summer which form scars called atrophie blanche. it is more associated with other syndromes (e.g., protein c deficiency; hyperhomocysteinemia). livedo reticularis with systemic involvement and stroke is sneddon syndrome.

  • Sneddon Syndrome

    a systemic non-inflammatory arteriopathy primarily of middle-aged females characterized by the association of livedo reticularis, multiple thrombotic cerebral infarction; coronary disease, and hypertension. elevation of antiphospholipid antibody titers (see also antiphospholipid syndrome), cardiac valvulopathy, ischemic attack, transient; seizures; dementia; and chronic ischemia of the extremities may also occur. pathologic examination of affected arteries reveals non-inflammatory adventitial fibrosis, thrombosis, and changes in the media (from jablonski, dictionary of syndromes & eponymic diseases, 2d ed; adams et al., principles of neurology, 6th ed, p861; arch neurol 1997 jan;54(1):53-60). mutations in the cecr1 gene (ada2 protein, human) are associated with sneddon syndrome.

  • Skin Pigmentation

    coloration of the skin.

  • Livedo Reticularis

    a recurrent purple discoloration of the skin that does not blanche and is found in a lacy, network pattern, most often in the lower extremities. it may be aggravated by exposure to cold and is classified as idiopathic or secondary. secondary livedo reticularis may be a cutaneous manifestation of immune system disorders (e.g., lupus erythematosus, rheumatoid arthritis, cryoglobulinemia, lymphoma, etc), and hematologic disorders (polycythemia vera).

  • Skin Pigmentation

    the color of the skin as determined by the amount of melanin present.

  • Skin Pigmentation Disorder|Pigmentation Disorders

    a disorder of the skin characterized by loss or reduction of the skin color. it is caused by loss of melanocytes or abnormalities in melanin production.

Patient EducationClinical

Varicose Veins

Varicose veins are swollen, twisted veins that you can see just under the skin. They usually occur in the legs, but also can form in other parts of the body. Hemorrhoids are a type of varicose vein.

Read the full article at MedlinePlus

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

Convert I83.899 to ICD-9-CMHistory

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

ICD-9-CM
454.8 Varic vein leg,comp NEC
Approximate The match is approximate rather than exact.

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 I83.899Overview

Is I83.899 (Varicose veins of lower extremities with other complications) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report varicose veins of unspecified lower extremity with other complications on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I83.899 group to?

When varicose veins of unspecified lower extremity with other complications is the principal diagnosis on an inpatient stay, it groups to MS-DRG 299, 300, 301, with relative weights from 0.7197 to 1.6327 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can I83.899 be reported for?

The Medicare Code Editor checks varicose veins of unspecified lower extremity with other complications against patient demographics: this code is intended for adult patients (age 15 through 124). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of I83.899?

Under the General Equivalence Mappings, varicose veins of unspecified lower extremity with other complications converts to ICD-9-CM 454.8 (varic vein leg,comp NEC). 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.