I45
Non-Billable

Other conduction disorders

Non-Billable / Non-Specific Code

What is Other conduction disorders?

ICD-10-CM I45 is the diagnosis code for Other conduction disorders. This code falls under the section "Other forms of heart disease" within Chapter 9 — Diseases of the circulatory system (I00-I99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for I45

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where I45 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
I45.0Right fascicular blockBillableI45.1Other and unspecified right bundle-branch blockNon-BillableI45.10Unspecified right bundle-branch blockBillableI45.19Other right bundle-branch blockBillableI45.2Bifascicular blockBillableI45.3Trifascicular blockBillableI45.4Nonspecific intraventricular blockBillableI45.5Other specified heart blockBillableI45.6Pre-excitation syndromeBillableI45.8Other specified conduction disordersNon-BillableI45.81Long QT syndromeBillableI45.89Other specified conduction disordersBillableI45.9Conduction disorder, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is I45 a billable ICD-10-CM code?

No, I45 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does I45 mean?

I45 is the ICD-10-CM diagnosis code for "Other conduction disorders". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is I45 in?

I45 is located in Section I30-I5A — "Other forms of heart disease" within Chapter 9 of the ICD-10-CM Tabular List.

What are the sub-codes of I45?

I45 has 9 sub-code(s) that provide more specific detail: I45.0, I45.1, I45.2, I45.3, I45.4 and more.

When should I use I45?

Use I45 when the patients documented diagnosis matches "Other conduction disorders" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Other conduction disorders?

The ICD-10-CM code for Other conduction disorders is I45.

Can I45 be used for primary diagnosis?

No, I45 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is I45 in?

I45 is in Chapter 9 of the ICD-10-CM Tabular List.

Is I45 valid for 2026?

Yes, I45 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousI44.7Left bundle-branch block, unspecifiedNext →I45.0Right fascicular block
Code Details
I45
Other conduction disorders
Non-Billable / Non-Specific Code
9 — Diseases of the circulatory system (I00-I99)
I30-I5A — Other forms of heart disease
2026 ICD-10-CM