I49.40 – Unspecified premature depolarization

ICD-10-CM 2027 diagnosis code · Other forms of heart disease

Billable code

ICD-10-CM code I49.40
Code
I49.40 (claims format: I4940)
Description
Unspecified premature depolarization
Billable
Yes – valid for HIPAA-covered transactions
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
9. Diseases of the circulatory system (I00-I99)
Block
I30-I5A Other forms of heart disease
Parent codes
I49 › I49.4

Notes for I49.40

Applicable to:
  • Premature beats NOS

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

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)

Index terms for I49.40

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in I49.4

Frequently asked questions

What is ICD-10 code I49.40?

I49.40 is the ICD-10-CM code for unspecified premature depolarization, in the block I30-I5A (Other forms of heart disease).

Is I49.40 a billable code?

Yes. I49.40 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I49.40 belong to?

It belongs to category I49 – Other cardiac arrhythmias.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.