2027 ICD-10-CM Diagnosis Code I83.008Varicose veins of unspecified lower extremity with ulcer other part of lower leg

ICD-10-CM Codes›I00–I99›I80-I89›I83

ICD-10-CM I83.008
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I83.008 is a billable ICD-10-CM diagnosis code for varicose veins of unspecified lower extremity with ulcer other part of lower leg. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 299 through 301. The code is restricted by the Medicare Code Editor to adult patients (age 15 through 124). Coders also document this condition as varicose ulcer of lower leg. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Varicose veins of lower extremity.

For Medicare Advantage risk adjustment, I83.008 maps to CMS-HCC Category 383 (Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle) under the V28 model, adding a risk factor of about 0.646 for a community, non-dual, aged beneficiary in payment year 2027.

Code Identity

ICD-10-CM Code
I83.008
Billable Status
Yes — Valid for Submission
Code Describes
Varicose veins of unspecified lower extremity with ulcer other part of lower leg
Short Description
Varicos vn unsp low extrm w ulcer oth part of lower leg
Parent Code
I83.00
Varicose veins of unspecified lower extremity with ulcer

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 CodeI83.008Varicose veins of unspecified lower extremity with ulcer other part of lower leg

Code EditsBilling

Medicare Code Editor checks that affect claim validity for I83.008.

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).

Medicare Risk Adjustment (HCC)Billing

I83.008 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.

CMS-HCC V28 Category (Payment Model)
HCC 383— Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle
Payment HCC · PY 2027 one of 308 ICD-10-CM codes in this category
Risk Adjustment Factor (RAF) Weight
+0.646
community, non-dual, aged · ranges 0.343–0.890 across segments
Hierarchy
Superseded by HCC 263, HCC 379, HCC 380, HCC 381, and HCC 382
a more severe related category takes the payment when both are reported
Prior Model (CMS-HCC V24)
HCC 107
V24 retired V28 pays 100% of MA risk scores since PY 2026
Other CMS Models
PACE (CMS-HCC V22): HCC 107 · ESRD (V21): HCC 107 · ESRD (V24): HCC 107
ESRD V21 weights: 0.126 dialysis, 0.300–0.431 functioning graft · ESRD V24 weights: 0.144 dialysis, 0.324–0.586 functioning graft
Part D (RxHCC)
Not mapped
I83.008 does not risk-adjust in the RxHCC prescription drug model

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Varicose ulcer of lower leg
  • Venous stasis ulcer co-occurrent with edema of lower leg

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I83.008: its own notes plus those printed at I83.0, I83, and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From I83 Varicose veins of lower extremities applies to 57 codes
  • varicose veins complicating pregnancy (O22.0-)
  • varicose veins complicating the puerperium (O87.4)
From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From I83.0 Varicose veins of lower extremities with ulcer applies to 21 codes
  • code to identify severity of ulcer (L97.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I83.008, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming I83.008: they are not reported together with it, unless the two conditions are unrelated.

  • I87.3 Chronic venous hypertension (idiopathic)
    varicose veins of lower extremities (I83.-) names I83.-, which includes this code

Excludes2 3

These codes carry an Excludes2 note naming I83.008: its condition is not part of those codes, and both may be reported when the patient has both.

  • L89 Pressure ulcer
    varicose ulcer (I83.0, I83.2) names I83.0, which includes this code
  • L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified
    varicose ulcer (I83.0-I83.93) names I83.0-I83.93, which includes this code
  • L98.A Non-pressure chronic ulcer of upper limb, not elsewhere classified
    varicose ulcer (I83.0-I83.93) names I83.0-I83.93, which includes this code

Code First 1

These codes say to code first a condition named in the note, and I83.008 is one of the conditions named.

  • L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified
    varicose ulcer (I83.0-, I83.2-) names I83.0-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

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 I83.008 to ICD-9-CMHistory

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

ICD-9-CM
454.0 Leg varicosity w ulcer
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About I83.008Overview

Is I83.008 (Varicose veins of unspecified lower extremity with ulcer) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report varicose veins of unspecified lower extremity with ulcer other part of lower leg on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does I83.008 group to?

When varicose veins of unspecified lower extremity with ulcer other part of lower leg is the principal diagnosis on an inpatient stay, it groups to MS-DRG 301, 300, 299, with relative weights from 0.7132 to 1.5840 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can I83.008 be reported for?

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

Does I83.008 need an additional code?

When the condition applies, yes. The Use Additional Code note at I83.0, which applies to I83.008, reads: code to identify severity of ulcer (L97.-). The additional code is reported after I83.008.

What is the ICD-9 equivalent of I83.008?

Under the General Equivalence Mappings, varicose veins of unspecified lower extremity with ulcer other part of lower leg converts to ICD-9-CM 454.0 (leg varicosity w ulcer). The mapping is approximate, so confirm the match fits the documentation.

What HCC is I83.008?

I83.008 (varicose veins of unspecified lower extremity with ulcer other part of lower leg) maps to CMS-HCC Category 383 (Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle), commonly written as HCC 383, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 107 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. It does not map to any RxHCC in the Part D prescription drug model.

Does I83.008 risk-adjust for Medicare Advantage payment?

Yes. When documented and reported on a Medicare Advantage encounter, I83.008 adds a risk adjustment factor of about 0.646 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.343 to 0.890 depending on the payment segment). A more severe related category (HCC 263, HCC 379, HCC 380, HCC 381, and HCC 382) supersedes it when both are reported. See the full factor table on the HCC 383 category page.