ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 I45

Non-Billable Header

Other conduction disorders

I45
Block
0
Synonyms
0
LCDs
0
Payer Policies
3
Linked CPTs

About ICD-10-CM I45

ICD-10-CM code I45 represents Other conduction disorders. This is a non-billable header code in the Circulatory System chapter (block I45). The 2026 edition of ICD-10-CM I45 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.

Medicare LCD Coverage for I45

Local Coverage Determinations (LCDs) from CMS MACs that list I45 as a covered diagnosis.

No Medicare LCDs reference I45 as covered

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 I45.

No commercial payer policies reference I45 on file

Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but I45 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.

CPT Codes Commonly Billed with I45

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

3 linkages
  • 93010 Exercise stress test for chest pain evaluation Internal Medicine
  • 93613 Cardiac resynchronization therapy for heart failure Cardiovascular Disease
  • 93616 Cardiac catheterization for chest pain evaluation Cardiovascular Disease

ICD-10 I45, Billing FAQ

Is ICD-10 code I45 billable? +

No, I45 is a non-billable header code. Use a more specific child code from block I45 when submitting claims.

What CPT codes are commonly billed with I45? +

Procedures frequently paired with I45 include: 93010, 93613, 93616.

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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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