ICD-10-CM 2027
ICD-10 code for dysrhythmia
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Dysrhythmia”. Page updated September 29, 2026.
About coding dysrhythmia
The official ICD-10-CM index doesn't give a single default code for dysrhythmia; the code depends on the details below.
More specific dysrhythmia codes (official index)
- cardiac I49.9 — Cardiac arrhythmia, unspecified
- newborn
- bradycardia P29.12 — Neonatal bradycardia
- occurring before birth P03.819 — Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm, unspecified as to time of onset
- before onset of labor P03.810 — Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm before the onset of labor
- during labor P03.811 — Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm during labor
- tachycardia P29.11 — Neonatal tachycardia
- postoperative I97.89 — Other postprocedural complications and disorders of the circulatory system, not elsewhere classified
- cerebral or cortical
Common questions about dysrhythmia ICD-10 codes
What is the ICD-10 code for cardiac dysrhythmia?
- I49.9 — Cardiac arrhythmia, unspecified.