426.9
ICD-9-CMThis code represents a general disturbance in the heart's electrical impulse transmission that is not further specified. It indicates an abnormality in the heart's conduction system, leading to irregular or inefficient heartbeats, without identifying the specific type or location of the block.
Use this code when documentation indicates a "conduction disorder" or "cardiac conduction abnormality" without further detail regarding the specific type (e.g., AV block, bundle branch block). This is appropriate when the physician has diagnosed a conduction issue but has not yet identified its precise nature or when more specific information is unavailable.
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