I42.81 – Arrhythmogenic cardiomyopathy
ICD-10-CM 2027 diagnosis code · Other forms of heart disease
ICD-10-CM code
I42.81
- Code
I42.81(claims format:I4281)- Description
- Arrhythmogenic cardiomyopathy
- 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
- I42 › I42.8
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
I42 – Cardiomyopathy
Includes:
- myocardiopathy
Excludes2 (not included here):
Code first:
- pre-existing cardiomyopathy complicating pregnancy and puerperium (O99.4)
Index terms for I42.81
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in I42.8
Frequently asked questions
What is ICD-10 code I42.81?
I42.81 is the ICD-10-CM code for arrhythmogenic cardiomyopathy, in the block I30-I5A (Other forms of heart disease).
Is I42.81 a billable code?
Yes. I42.81 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does I42.81 belong to?
It belongs to category I42 – Cardiomyopathy.
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.