ICD Code I44.7

ICD code I44.7 is left bundle-branch block, unspecified, which refers to a blockage or delay in the electrical impulses that travel through the left bundle branch of the heart’s conduction system, without further specification of the type.

1. Presence of a widened QRS complex (typically ≥120 ms) on a 12-lead ECG

2. Broad, notched, or slurred R waves in leads I, aVL, V5, and V6

3. Absence of Q waves in leads I, V5, and V6

4. Dominant S waves in leads V1 and V2

5. Delayed intrinsicoid deflection in leads V5 and V6

6. Clinical documentation indicating left bundle branch block without further specification

7. No evidence of an alternative, more specific conduction disorder

Relevant CPT codes that may be used to treat ICD code I44.7 include:

93000 – Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report

93010 – Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only

93005 – Electrocardiogram, routine ECG with at least 12 leads; tracing only, without interpretation and report

93224 – External electrocardiographic recording up to 48 hours by continuous rhythm recording and storage; includes recording, scanning analysis with report, review and interpretation

93225 – External electrocardiographic recording up to 48 hours by continuous rhythm recording and storage; recording (includes connection, recording, and disconnection)

93226 – External electrocardiographic recording up to 48 hours by continuous rhythm recording and storage; scanning analysis with report

93227 – External electrocardiographic recording up to 48 hours by continuous rhythm recording and storage; review and interpretation

33206 – Insertion of new or replacement of permanent pacemaker with transvenous electrode(s); atrial

33207 – Insertion of new or replacement of permanent pacemaker with transvenous electrode(s); ventricular

33208 – Insertion of new or replacement of permanent pacemaker with transvenous electrode(s); atrial and ventricular

33249 – Insertion or replacement of permanent implantable defibrillator system, with transvenous lead(s), single or dual chamber

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