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I45 - Other conduction disorders

ICD-10-CM Chapter 9: Diseases of the circulatory system · I30-I5A Other forms of heart disease (I30-I5A) · Top-level category · FY2027

Coding Guidance

I45 is a non-billable heading. Report one of the 9 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 2 — Not Included HereFrom Chapter I00-I99

Not part of this code; report both codes when the patient has both conditions.

  • 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.-)

More Specific Codes (9)

I45.0Right fascicular block→I45.1Other and unspecified right bundle-branch block→I45.2Bifascicular block→I45.3Trifascicular block→I45.4Nonspecific intraventricular block→I45.5Other specified heart block→I45.6Pre-excitation syndrome→I45.8Other specified conduction disorders→I45.9Conduction disorder, unspecified→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with I45.