2019

  1. ICD-10-CM Codes
    2. ›
  2. I00-I99 Diseases of the circulatory system
    3. ›
  3. I30-I52 Other forms of heart disease
    4. ›
  4. I45- Other conduction disorders
    5. ›

2019 ICD-10-CM Diagnosis Code I45.4

Nonspecific intraventricular block

    2016 2017 2018 2019 Billable/Specific Code
  • I45.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM I45.4 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of I45.4 - other international versions of ICD-10 I45.4 may differ.
Applicable To
  • Bundle-branch block NOS
The following code(s) above I45.4 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I45.4:
  • I00-I99
    2019 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • 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.-)
    Diseases of the circulatory system
Approximate Synonyms
  • Bundle branch block
  • Diffuse intraventricular block
  • Intraventricular block, diffuse
Clinical Information
  • A form of heart block in which the electrical stimulation of heart ventricles is interrupted at either one of the branches of bundle of his thus preventing the simultaneous depolarization of the two ventricles.
  • An electrocardiographic finding defined by prolongation of the qrs complex. It is caused by damage of one of the bundle branches, resulting in the delay or obstruction of the conduction of electrical impulses.
ICD-10-CM I45.4 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 308 Cardiac arrhythmia and conduction disorders with mcc
  • 309 Cardiac arrhythmia and conduction disorders with cc
  • 310 Cardiac arrhythmia and conduction disorders without cc/mcc

Convert I45.4 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to I45.4:

ICD-10-CM Codes Adjacent To I45.4
I44.60 Unspecified fascicular block
I44.69 Other fascicular block
I44.7 Left bundle-branch block, unspecified
I45 Other conduction disorders
I45.0 Right fascicular block
I45.1 Other and unspecified right bundle-branch block
I45.10 Unspecified right bundle-branch block
I45.19 Other right bundle-branch block
I45.2 Bifascicular block
I45.3 Trifascicular block
I45.4 Nonspecific intraventricular block
I45.5 Other specified heart block
I45.6 Pre-excitation syndrome
I45.8 Other specified conduction disorders
I45.81 Long QT syndrome
I45.89 Other specified conduction disorders
I45.9 Conduction disorder, unspecified
I46 Cardiac arrest
I46.2 Cardiac arrest due to underlying cardiac condition
I46.8 Cardiac arrest due to other underlying condition
I46.9 Cardiac arrest, cause unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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