I45 — Other conduction disorders
Not billable
Is I45 billable?
No — I45 is a non-billable header code. I45 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 11 billable codes beneath I45.
Billable codes under this header
- I45.0Right fascicular block
- I45.2Bifascicular block
- I45.3Trifascicular block
- I45.4Nonspecific intraventricular block
- I45.5Other specified heart block
- I45.6Pre-excitation syndrome
- I45.9Conduction disorder, unspecified
- I45.10Unspecified right bundle-branch block
- I45.19Other right bundle-branch block
- I45.81Long QT syndrome
- I45.89Other specified conduction disorders
I45 at a glance
| Code | I45 |
|---|---|
| Description | Other conduction disorders |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I45, but a patient may have both at the same time. When documentation supports it, I45 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
What codes fall under I45? (9)
- I45.0Right fascicular block
- I45.1Other and unspecified right bundle-branch blocknot billable
- I45.2Bifascicular block
- I45.3Trifascicular block
- I45.4Nonspecific intraventricular block
- I45.5Other specified heart block
- I45.6Pre-excitation syndrome
- I45.8Other specified conduction disordersnot billable
- I45.9Conduction disorder, unspecified
How long has I45 existed?
I45 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.