ICD-10 I35.1
Billable / SpecificNonrheumatic aortic (valve) insufficiency
About ICD-10-CM I35.1
ICD-10-CM code I35.1 represents Nonrheumatic aortic (valve) insufficiency. This is a billable/specific code in the Circulatory System chapter (block I35). The 2026 edition of ICD-10-CM I35.1 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I35.1. Per CMS ICD-10-CM Tabular 2026.
- Nonrheumatic aortic (valve) incompetence NOS
- Nonrheumatic aortic (valve) regurgitation NOS
Medicare LCD Coverage for I35.1
Local Coverage Determinations (LCDs) from CMS MACs that list I35.1 as a covered diagnosis.
Showing top 10 of 443 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I35.1.
5 Medicare
CPT Codes Commonly Billed with I35.1
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 93306 Echo with Doppler — heart failure, cardiomyopathy, mitral/aortic/tricuspid valve disease, chest pain, dyspnea, CAD, pulmonary HTN, ASD, VSD, congenital valve Cardiology
Convert I35.1 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 |
|---|---|---|
| I35.1 | 4241 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I35.1
Other codes in section I30-I5A (Other forms of heart disease).
ICD-10 I35.1, Billing FAQ
Is ICD-10 code I35.1 billable? +
Yes, I35.1 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to I35.1? +
ICD-10 I35.1 includes: Nonrheumatic aortic (valve) incompetence NOS; Nonrheumatic aortic (valve) regurgitation NOS.
What CPT codes are commonly billed with I35.1? +
Procedures frequently paired with I35.1 include: 93306.
What ICD-9 codes does I35.1 map to? +
Per CMS GEMs, I35.1 maps to ICD-9 codes: 4241. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team