I44
Non-billableAtrioventricular and left bundle-branch block
Atrioventricular and left bundle-branch block
This is a header/category code. For billing purposes, use a more specific child code from the list below.
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
Child Codes (8)
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
I44.7Left bundle-branch block, unspecified
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for atrioventricular and left bundle-branch block?
The ICD-10-CM code for atrioventricular and left bundle-branch block is I44. The full clinical description is "Atrioventricular and left bundle-branch block". I44 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code I44 mean?
ICD-10-CM code I44 represents “Atrioventricular and left bundle-branch block”. It is classified under Chapter 9: Diseases of the Circulatory System and is a non-billable header code. Use a more specific child code for billing purposes.
Is I44 a billable code?
No, I44 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 8 child codes under I44.
What chapter is I44 in?
I44 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What are the subcategories under I44?
I44 has 8 child codes, including: I44.0 (Atrioventricular block, first degree), I44.1 (Atrioventricular block, second degree), I44.2 (Atrioventricular block, complete), I44.3 (Other and unspecified atrioventricular block), and 4 more.
What are the UMLS CUIs for I44?
I44 is linked to 1 UMLS Concept Unique Identifier: C0494595. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I44 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like atrioventricular and left bundle-branch 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 I44?
I44 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.