ICD-10 I83.009
Billable / Specific HCC v28: 107Varicose veins of unspecified lower extremity with ulcer of unspecified site
About ICD-10-CM I83.009
ICD-10-CM code I83.009 represents Varicose veins of unspecified lower extremity with ulcer of unspecified site. This is a billable/specific code in the Circulatory System chapter (block I83). The 2026 edition of ICD-10-CM I83.009 became effective on October 1, 2025.
Coding Tips for I83.009
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I83.009 is a CMS-HCC v28 risk-adjustment code (category 107). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for I83.009
Local Coverage Determinations (LCDs) from CMS MACs that list I83.009 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I83.009.
1 Cigna
CPT Codes Commonly Billed with I83.009
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 11042 Debridement subcutaneous — pressure ulcers all stages, diabetic ulcer, venous ulcer, wound dehiscence General Surgery
Convert I83.009 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| I83.009 | 4540 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I83.009
Other codes in section I80-I89 (Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified).
ICD-10 I83.009, Billing FAQ
Is ICD-10 code I83.009 billable? +
Yes, I83.009 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Does I83.009 affect Medicare Advantage HCC risk adjustment? +
Yes. I83.009 maps to CMS-HCC v28 category 107. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with I83.009? +
Procedures frequently paired with I83.009 include: 11042.
What ICD-9 codes does I83.009 map to? +
Per CMS GEMs, I83.009 maps to ICD-9 codes: 4540. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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