I45.4
BillableNonspecific intraventricular block
Nonspecific intraventricular block
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Bundle-branch block NOS
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
Related Codes(8)
I45.0Right fascicular block
I45.1Other and unspecified right bundle-branch block
I45.2Bifascicular block
I45.3Trifascicular block
I45.5Other specified heart block
I45.6Pre-excitation syndrome
I45.8Other specified conduction disorders
I45.9Conduction disorder, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(78)
SNOMED CT
- Monofascicular block2374000
- BBB - Bundle branch block6374002
- Bundle branch block6374002
- Fascicular block6374002
- Diffuse intraventricular block82226007
- Myofibrillar intraventricular block82226007
- Supraventricular tachycardia with functional bundle branch block233900001
- Minor intraventricular conduction defect251125008
- Non-specific intraventricular conduction defect698252002
- Non-specific intraventricular conduction delay698252002
- Nonspecific intraventricular conduction disorder698252002
UMLS
- BBB - Bundle branch blockC0006384
- Block bundle branchC0006384
- Block, Bundle BranchC0006384
- Block, Bundle-BranchC0006384
- Blocks, Bundle BranchC0006384
- Blocks, Bundle-BranchC0006384
- Branch Block, BundleC0006384
- Branch Blocks, BundleC0006384
- Bundle Branch BlockC0006384
- Bundle Branch Block by ECG FindingC0006384
- Bundle Branch Block by EKG FindingC0006384
- Bundle Branch BlocksC0006384
- Bundle branch blockC0006384
- Bundle branch block (disorder)C0006384
- Bundle branch block NOSC0006384
- Bundle branch block, unspecifiedC0006384
- Bundle-Branch BlockC0006384
- Bundle-Branch BlocksC0006384
- Bundle-branch blockC0006384
- Bundle-branch block NOSC0006384
- Heart block bundle branchC0006384
- block branch bundleC0006384
- block branch bundle heartC0006384
- block bundle branchC0006384
- blocked branch bundleC0006384
- blocks branch bundleC0006384
- branch bundle blockC0006384
- bundle block branchC0006384
- bundle branch blockC0006384
- bundle branch heart blockC0006384
- bundle-branch blockC0006384
- Nonspecific intraventricular blockC0494597
Clinical Terms
- Bundle Branch Block by ECG Finding
- Bundle branch block
- block bundle branch
- Block, Bundle-Branch
- Non-specific intraventricular conduction defect
- Bundle-branch block
- Myofibrillar intraventricular block
- Branch Blocks, Bundle
- Bundle branch block NOS
- bundle branch heart block
- Bundle-branch block NOS
- Blocks, Bundle-Branch
- block branch bundle heart
- Diffuse intraventricular block
- Minor intraventricular conduction defect
- Fascicular block
- Bundle Branch Blocks
- branch bundle block
- Non-specific intraventricular conduction delay
- Blocks, Bundle Branch
- Monofascicular block
- Bundle-Branch Blocks
- Bundle branch block (disorder)
- bundle block branch
- Branch Block, Bundle
- Bundle Branch Block by EKG Finding
- block branch bundle
- blocked branch bundle
- Nonspecific intraventricular conduction disorder
- BBB - Bundle branch block
- blocks branch bundle
- Heart block bundle branch
- Block, Bundle Branch
- Bundle branch block, unspecified
- Supraventricular tachycardia with functional bundle branch block
Frequently Asked Questions
What is the ICD-10 code for nonspecific intraventricular block?
The ICD-10-CM code for nonspecific intraventricular block is I45.4. The full clinical description is "Nonspecific intraventricular block". I45.4 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I45.4 mean?
ICD-10-CM code I45.4 represents “Nonspecific intraventricular block”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.
Is I45.4 a billable code?
Yes, I45.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I45.4 in?
I45.4 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I45.4 map to?
I45.4 maps to 6 SNOMED CT concepts: 6374002, 82226007, 251125008, 2374000, 698252002, and 1 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I45.4?
I45.4 is linked to 2 UMLS Concept Unique Identifiers: C0006384, C0494597. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I45.4 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like nonspecific intraventricular block affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of I45.4?
I45.4 maps to the ICD-11 code: BC63.5 (Nonspecific intraventricular conduction delay).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.