ICD-10 code for Wenckebach block

The ICD-10-CM code for Wenckebach block is I44.1 (Atrioventricular block, second degree).

Within I44 (atrioventricular and left bundle-branch block), I44.1 is specifically for atrioventricular block, second degree. Related codes cover atrioventricular block, first degree (I44.0), atrioventricular block, complete (I44.2), other and unspecified atrioventricular block (I44.3), left anterior fascicular block (I44.4), left posterior fascicular block (I44.5), other and unspecified fascicular block (I44.6) and left bundle-branch block, unspecified (I44.7).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 308 (Cardiac Arrhythmia and Conduction Disorders with MCC, relative weight 1.1806), DRG 309 (Cardiac Arrhythmia and Conduction Disorders with CC, relative weight 0.7316) and DRG 310 (Cardiac Arrhythmia and Conduction Disorders without CC/MCC, relative weight 0.568), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.