ICD-10-CM
ICD-10 code for Accessory (congenital) atrioventricular conduction: I45.6
The ICD-10-CM index points "Accessory (congenital) atrioventricular conduction" to I45.6, Pre-excitation syndrome. I45.6 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in I45
A header groups codes and is not billed. A billable code is one you can report.
- I45Other conduction disordersHeader
- I45.0Right fascicular blockBillable
- I45.1Other and unspecified right bundle-branch blockHeader
- I45.10Unspecified right bundle-branch blockBillable
- I45.19Other right bundle-branch blockBillable
- I45.2Bifascicular blockBillable
- I45.3Trifascicular blockBillable
- I45.4Nonspecific intraventricular blockBillable
- I45.5Other specified heart blockBillable
- I45.6Pre-excitation syndromeBillable
- I45.8Other specified conduction disordersHeader
- I45.81Long QT syndromeBillable
- I45.89Other specified conduction disordersBillable
- I45.9Conduction disorder, unspecifiedBillable
Related conditions
Related pages
- I45.6 code detailsNotes, nearby codes, CMS-HCC group
- Category I45Every code under it
- Chapter 9Diseases of the circulatory system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Accessory (congenital) atrioventricular conduction?
The ICD-10-CM index points "Accessory (congenital) atrioventricular conduction" to I45.6, Pre-excitation syndrome. I45.6 is a billable code.
Is I45.6 billable?
Yes. I45.6 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is I45.6 in?
Chapter 9. Diseases of the circulatory system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.