ICD-10 I70.25
Billable / Specific HCC v28: 161Atherosclerosis of native arteries of other extremities with ulceration
About ICD-10-CM I70.25
ICD-10-CM code I70.25 represents Atherosclerosis of native arteries of other extremities with ulceration. This is a billable/specific code in the Circulatory System chapter (block I70). The 2026 edition of ICD-10-CM I70.25 became effective on October 1, 2025.
Coding Tips for I70.25
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I70.25 is a CMS-HCC v28 risk-adjustment code (category 161). 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.
Includes
- any condition classifiable to I70.218 and I70.228
Use Additional Code
When coding I70.25, also report these additional codes when applicable.
- code to identify the severity of the ulcer (L98.49-)
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 I70.25
Local Coverage Determinations (LCDs) from CMS MACs that list I70.25 as a covered diagnosis.
Showing top 10 of 930 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I70.25.
1 Cigna
5 Medicare
CPT Codes Commonly Billed with I70.25
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 11047 CMS LCD: Billing and Coding: Debridement Services CMS LCD
- 11001 CMS LCD: Billing and Coding: Debridement Services CMS LCD
- 11046 CMS LCD: Billing and Coding: Debridement Services CMS LCD
- 11045 CMS LCD: Billing and Coding: Debridement Services CMS LCD
- 11000 CMS LCD: Billing and Coding: Debridement Services CMS LCD
- 11006 CMS LCD: Billing and Coding: Wound and Ulcer Care CMS LCD
- 97607 CMS LCD: Billing and Coding: Wound and Ulcer Care CMS LCD
- 11008 CMS LCD: Billing and Coding: Wound and Ulcer Care CMS LCD
- 11005 CMS LCD: Billing and Coding: Wound and Ulcer Care CMS LCD
- 11012 CMS LCD: Billing and Coding: Wound and Ulcer Care CMS LCD
Convert I70.25 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 |
|---|---|---|
| I70.25 | 44023 | 10111 |
| I70.25 | 7079 | 10112 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I70.25
Other codes in section I70-I79 (Diseases of arteries, arterioles and capillaries).
ICD-10 I70.25, Billing FAQ
Is ICD-10 code I70.25 billable? +
Yes, I70.25 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Does I70.25 affect Medicare Advantage HCC risk adjustment? +
Yes. I70.25 maps to CMS-HCC v28 category 161. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with I70.25? +
Procedures frequently paired with I70.25 include: 11047, 11001, 11046, 11045, 11000.
What ICD-9 codes does I70.25 map to? +
Per CMS GEMs, I70.25 maps to ICD-9 codes: 44023, 7079. 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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