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

ICD-10 I44.30

Billable / Specific

Unspecified atrioventricular block

I44
Block
0
Synonyms
370
LCDs
26
Payer Policies
16
Linked CPTs

About ICD-10-CM I44.30

ICD-10-CM code I44.30 represents Unspecified atrioventricular block. This is a billable/specific code in the Circulatory System chapter (block I44). The 2026 edition of ICD-10-CM I44.30 became effective on October 1, 2025.

Medicare LCD Coverage for I44.30

Local Coverage Determinations (LCDs) from CMS MACs that list I44.30 as a covered diagnosis.

370 LCDs

Showing top 10 of 370 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Magnesium
Article ID: 59186, Effective: 2025-10-01 00:00:00, 4358 covered, 0 non-covered
CPT 83735 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT G0480 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT G0481 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT G0482 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT G0483 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT 80305 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT G0659 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT 80307 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 59416, Effective: 2025-11-01 00:00:00, 428 covered, 0 non-covered
CPT 80306 →
CMS LCD: Billing and Coding: Urine Drug Testing
Article ID: 55001, Effective: 2026-01-01 00:00:00, 388 covered, 0 non-covered
CPT G0480 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing I44.30.

26 policies

1 Cigna

Transthoracic Echocardiography in Adults - (0510)
Policy ID: MM_0510

5 Medicare

Billing and Coding: Urine Drug Testing
Policy ID: ART-54799
Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemaker
Policy ID: ART-54831
Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers
Policy ID: ART-54909
Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers
Policy ID: ART-54926
Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing
Policy ID: ART-54929

CPT Codes Commonly Billed with I44.30

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

16 linkages
  • 33208 CMS LCD: Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing CMS LCD
  • 33206 CMS LCD: Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing CMS LCD
  • 33207 CMS LCD: Billing and Coding: Single Chamber and Dual Chamber Permanent Cardiac Pacemakers � Coding and Billing CMS LCD
  • 0573T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD
  • 0574T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD
  • 0614T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD
  • 0577T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD
  • 0572T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD
  • 0576T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD
  • 0575T CMS LCD: Billing and Coding: Implantable Automatic Defibrillators CMS LCD

Convert I44.30 to ICD-9-CM

Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.

ICD-10ICD-9Mapping Flags
I44.30 42610 10000
I44.30 42650 10000

Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).

ICD-10 I44.30, Billing FAQ

Is ICD-10 code I44.30 billable? +

Yes, I44.30 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What CPT codes are commonly billed with I44.30? +

Procedures frequently paired with I44.30 include: 33208, 33206, 33207, 0573T, 0574T.

What ICD-9 codes does I44.30 map to? +

Per CMS GEMs, I44.30 maps to ICD-9 codes: 42610, 42650. 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 July 16, 2026.

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