I44.7
BillableLeft bundle-branch block, unspecified
Left bundle-branch block, unspecified
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(7)
I44.0Atrioventricular block, first degree
I44.1Atrioventricular block, second degree
I44.2Atrioventricular block, complete
I44.3Other and unspecified atrioventricular block
I44.4Left anterior fascicular block
I44.5Left posterior fascicular block
I44.6Other and unspecified fascicular block
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(59)
SNOMED CT
- Anterior fascicular with posterior fascicular block6180003
- Complete left bundle branch block6180003
- Main stem left bundle branch block6180003
- LBBB - Left bundle branch block63467002
- Left bundle branch block63467002
- ECG: LBBB - left bundle branch block164909002
- ECG: left bundle branch block164909002
- EKG: left bundle branch block164909002
- Electrocardiographic left bundle branch block164909002
- Left main stem bundle branch block195046004
- Incomplete left bundle branch block251120003
- ECG complete left bundle branch block733534002
- Electrocardiographic complete left bundle branch block733534002
UMLS
- Block, Left Bundle-BranchC0023211
- Blocks, Left Bundle-BranchC0023211
- Bundle branch block leftC0023211
- Bundle-Branch Block, LeftC0023211
- Bundle-Branch Blocks, LeftC0023211
- LBBBC0023211
- LBBB - Left bundle branch blockC0023211
- Left Bundle Branch BlockC0023211
- Left Bundle-Branch BlockC0023211
- Left Bundle-Branch BlocksC0023211
- Left bundle branch blockC0023211
- Left bundle branch block (disorder)C0023211
- Left bundle-branch block, unspecifiedC0023211
- block branch bundle leftC0023211
- blocked branch bundle leftC0023211
- blocks branch bundle leftC0023211
- bundle branch block leftC0023211
- lbbbC0023211
- left branch bundle blockC0023211
- left bundle branch blockC0023211
- left bundle-branch blockC0023211
Clinical Terms
- Incomplete left bundle branch block
- ECG: left bundle branch block
- Electrocardiographic complete left bundle branch block
- left branch bundle block
- Left main stem bundle branch block
- Block, Left Bundle-Branch
- Bundle-Branch Block, Left
- Blocks, Left Bundle-Branch
- Complete left bundle branch block
- Left bundle branch block (disorder)
- LBBB - Left bundle branch block
- ECG complete left bundle branch block
- blocked branch bundle left
- Bundle branch block left
- Main stem left bundle branch block
- LBBB
- left bundle branch block
- EKG: left bundle branch block
- Bundle-Branch Blocks, Left
- block branch bundle left
- Anterior fascicular with posterior fascicular block
- Electrocardiographic left bundle branch block
- Left Bundle-Branch Blocks
- blocks branch bundle left
- ECG: LBBB - left bundle branch block
Frequently Asked Questions
What is the ICD-10 code for left bundle-branch block, unspecified?
The ICD-10-CM code for left bundle-branch block, unspecified is I44.7. The full clinical description is "Left bundle-branch block, unspecified". I44.7 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I44.7 mean?
ICD-10-CM code I44.7 represents “Left bundle-branch block, unspecified”. 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 I44.7 a billable code?
Yes, I44.7 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I44.7 in?
I44.7 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I44.7 map to?
I44.7 maps to 6 SNOMED CT concepts: 6180003, 733534002, 164909002, 251120003, 63467002, and 1 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I44.7?
I44.7 is linked to 1 UMLS Concept Unique Identifier: C0023211. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I44.7 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like left bundle-branch block, unspecified 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 I44.7?
I44.7 maps to the ICD-11 code: BC63.4Z (Left bundle branch block, fascicle 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.