I49.89

Other specified cardiac arrhythmias not elsewhere classified

Billable / specificNew in FY2027

I49.89 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Not included here — may be reported together when both conditions exist.

certain conditions originating in the perinatal period (P04-P96) (from I49)
certain infectious and parasitic diseases (A00-B99) (from I49)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from I49)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from I49)
endocrine, nutritional and metabolic diseases (E00-E88) (from I49)
injury, poisoning and certain other consequences of external causes (S00-T88) (from I49)
neoplasms (C00-D49) (from I49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from I49)
systemic connective tissue disorders (M30-M36) (from I49)
transient cerebral ischemic attacks and related syndromes (G45.-) (from I49)
bradycardia NOS (R00.1) (from I49)
neonatal dysrhythmia (P29.1-) (from I49)
sinoatrial bradycardia (R00.1) (from I49)
sinus bradycardia (R00.1) (from I49)
vagal bradycardia (R00.1) (from I49)

Sequence the underlying condition first.

Coronary sinus rhythm disorder
Ectopic rhythm disorder
Nodal rhythm disorder
Arrhythmia, sinus
Arrhythmia, specified NEC
Bradyarrhythmia, cardiac
Fibrillation, cardiac
Fibrillation, heart
Flutter, heart
Incompetency, incompetent, incompetence, chronotropic, with sinus node dysfunction
Nodal rhythm
Rhythm, atrioventricular nodal
Rhythm, disorder, coronary sinus
Rhythm, disorder, ectopic
Rhythm, disorder, nodal
Rhythm, nodal
Sinus, arrhythmia
Wandering, pacemaker