I49.4 Other and unspecified premature depolarization

Non-billable header with 2 child codes.

Applies from I49 Other cardiac arrhythmias

Excludes2 (not included here)

• bradycardia NOS (R00.1)
• neonatal dysrhythmia (P29.1-)
• sinoatrial bradycardia (R00.1)
• sinus bradycardia (R00.1)
• vagal bradycardia (R00.1)

Code first

• cardiac arrhythmia complicating:
• abortion or ectopic or molar pregnancy (O00-O07, O08.8)
• obstetric surgery and procedures (O75.4)

Codes under I49.4

• I49.40 Unspecified premature depolarization
• I49.49 Other premature depolarization

Code annotations containing back-references to I49.4

Back-references to I49

• Code Also: M35.81 Multisystem inflammatory syndrome ("cardiac arrhythmia (I47-I49.-)")
• Type 2 Excludes: R00 Abnormalities of heart beat ("specified arrhythmias (I47-I49)")

Nearby codes

• I49.01 Ventricular fibrillation
• I49.02 Ventricular flutter
• I49.1 Atrial premature depolarization
• I49.2 Junctional premature depolarization
• I49.3 Ventricular premature depolarization
• I49.4 Other and unspecified premature depolarization (this code)
• I49.40 Unspecified premature depolarization
• I49.49 Other premature depolarization
• I49.5 Sick sinus syndrome
• I49.8 Other specified cardiac arrhythmias
• I49.9 Cardiac arrhythmia, unspecified