I45.8 – Other specified conduction disorders
ICD-10-CM 2027 diagnosis code · Other forms of heart disease
ICD-10-CM code
I45.8
- Code
I45.8(claims format:I458)- Description
- Other specified conduction disorders
- Billable
- No – use a more specific code below
- 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
- I45
Billable codes under I45.8
I45.8 is a header code and cannot be used on claims. Choose the most specific code:
Related codes in I45
- I45.0 – Right fascicular blockBillable
- I45.1 – Other and unspecified right bundle-branch blockHeader
- I45.2 – Bifascicular blockBillable
- I45.3 – Trifascicular blockBillable
- I45.4 – Nonspecific intraventricular blockBillable
- I45.5 – Other specified heart blockBillable
- I45.6 – Pre-excitation syndromeBillable
- I45.9 – Conduction disorder, unspecifiedBillable
Frequently asked questions
What is ICD-10 code I45.8?
I45.8 is the ICD-10-CM code for other specified conduction disorders, in the block I30-I5A (Other forms of heart disease).
Is I45.8 a billable code?
No. I45.8 is a header code with more specific child codes; report one of the billable codes listed above.
What category does I45.8 belong to?
It belongs to category I45 – Other conduction disorders.
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.