I45.2
BillableBifascicular block
Bifascicular block
Coding Notes
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
I45.3Trifascicular block
I45.4Nonspecific intraventricular 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(80)
SNOMED CT
- Monofascicular block2374000
- Right bundle branch block, posterior fascicular block AND incomplete left bundle branch block14718009
- Bilateral bundle branch block20143001
- RBBB - Right bundle branch block with left anterior fascicular block30667004
- Right bundle branch block AND left anterior fascicular block30667004
- Right bundle branch block with left anterior fascicular block30667004
- Right bundle branch block, anterior fascicular block AND posterior fascicular block32425009
- Right bundle branch block with left bundle branch block32758004
- Right bundle branch block with left main stem bundle branch block32758004
- LAFB - Left anterior fascicular block37760005
- Left anterior fascicular block37760005
- Left anterior hemiblock37760005
- Right bundle branch block, anterior fascicular block AND incomplete left bundle branch block38566003
- Right bundle branch block, anterior fascicular block AND incomplete posterior fascicular block41863008
- Right bundle branch block AND incomplete left bundle branch block43906007
- RBBB - Right bundle branch block with left posterior fascicular block46319007
- Right bundle branch block AND left posterior fascicular block46319007
- Right bundle branch block with left posterior fascicular block46319007
- Left posterior fascicular block62026008
- Right bundle branch block, posterior fascicular block AND incomplete anterior fascicular block66568003
- Right branch block, incomplete anterior fascicular block AND incomplete posterior fascicular block73459006
- Bifascicular block74021003
- Anterior fascicular block, posterior fascicular block AND incomplete right bundle branch block76887001
- ECG: right bundle branch block164907000
- EKG: right bundle branch block164907000
- Electrocardiographic right bundle branch block164907000
- Right bundle branch block (RBBB) on electrocardiogram164907000
- ECG: LBBB - left bundle branch block164909002
- ECG: left bundle branch block164909002
- EKG: left bundle branch block164909002
- Electrocardiographic left bundle branch block164909002
- ECG: left posterior fascicular block445211001
- Electrocardiogram: left posterior fascicular block445211001
- Left posterior fascicular block on electrocardiogram445211001
- Right bundle branch block and left posterior fascicular block on electrocardiogram445393004
- Bifascicular block on electrocardiogram445481009
UMLS
Clinical Terms
- Bifascicular block on electrocardiogram
- Bilateral bundle branch block
- ECG: right bundle branch block
- Right bundle branch block, posterior fascicular block AND incomplete anterior fascicular block
- ECG: left bundle branch block
- Right bundle branch block, anterior fascicular block AND posterior fascicular block
- RBBB - Right bundle branch block with left posterior fascicular block
- Bifascicular Block by ECG Finding
- Right bundle branch block AND left posterior fascicular block
- Right bundle branch block with left bundle branch block
- Left anterior hemiblock
- Left posterior fascicular block on electrocardiogram
- Left posterior fascicular block
- Left anterior fascicular block
- RBBB - Right bundle branch block with left anterior fascicular block
- Electrocardiogram: left posterior fascicular block
- Right bundle branch block AND left anterior fascicular block
- Right bundle branch block with left posterior fascicular block
- Electrocardiographic right bundle branch block
- Right bundle branch block AND incomplete left bundle branch block
- Right bundle branch block with left anterior fascicular block
- Anterior fascicular block, posterior fascicular block AND incomplete right bundle branch block
- Right bundle branch block, posterior fascicular block AND incomplete left bundle branch block
- LAFB - Left anterior fascicular block
- Right bundle branch block (RBBB) on electrocardiogram
- Bifascicular Block by EKG Finding
- Right bundle branch block, anterior fascicular block AND incomplete posterior fascicular block
- Bifascicular block (disorder)
- EKG: left bundle branch block
- Monofascicular block
- Electrocardiographic left bundle branch block
- Right branch block, incomplete anterior fascicular block AND incomplete posterior fascicular block
- Right bundle branch block and left posterior fascicular block on electrocardiogram
- EKG: right bundle branch block
- Right bundle branch block, anterior fascicular block AND incomplete left bundle branch block
- Right bundle branch block with left main stem bundle branch block
- ECG: LBBB - left bundle branch block
- ECG: left posterior fascicular block
Frequently Asked Questions
What is the ICD-10 code for bifascicular block?
The ICD-10-CM code for bifascicular block is I45.2. The full clinical description is "Bifascicular block". I45.2 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I45.2 mean?
ICD-10-CM code I45.2 represents “Bifascicular 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 I45.2 a billable code?
Yes, I45.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I45.2 in?
I45.2 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I45.2 map to?
I45.2 maps to 21 SNOMED CT concepts: 76887001, 74021003, 445481009, 20143001, 164909002, and 16 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I45.2?
I45.2 is linked to 1 UMLS Concept Unique Identifier: C0264914. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I45.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like bifascicular 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 I45.2?
I45.2 maps to the ICD-11 code: BC63.Z (Conduction disorders, unspecified).
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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.