ICD-10-CM category
I44: Atrioventricular and left bundle-branch block
Codes under I44 (Atrioventricular and left bundle-branch block). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I44.0 | Atrioventricular block, first degree | ✓ |
| I44.1 | Atrioventricular block, second degree | ✓ |
| I44.2 | Atrioventricular block, complete | ✓ |
| I44.3 | Other and unspecified atrioventricular block | — |
| I44.4 | Left anterior fascicular block | ✓ |
| I44.5 | Left posterior fascicular block | ✓ |
| I44.6 | Other and unspecified fascicular block | — |
| I44.7 | Left bundle-branch block, unspecified | ✓ |
| I44.30 | Unspecified atrioventricular block | ✓ |
| I44.39 | Other atrioventricular block | ✓ |
| I44.60 | Unspecified fascicular block | ✓ |
| I44.69 | Other fascicular block | ✓ |
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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