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I49

Non-billable

Other cardiac arrhythmias

I49 is the ICD-10-CM code for Other cardiac arrhythmias. It is a non-billable category code — use a more specific child code such as I49.0 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Subcodes
8
Edition
FY2026

I00-I99 Diseases of the circulatory system

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)

Frequently asked questions

What is ICD-10 code I49?
I49 is the ICD-10-CM code for "Other cardiac arrhythmias". It falls under I00-I99 Diseases of the circulatory system.
Is I49 a billable code?
No — I49 is a non-billable header code. Use a more specific child code (such as I49.0) for billing.
What are the subcodes of I49?
I49 has 8 more specific child codes, including I49.0, I49.1, I49.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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