I44.0
BillableAtrioventricular block, first degree
Atrioventricular block, first degree
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)
I44.1Atrioventricular 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(50)
SNOMED CT
UMLS
- 1st degree av blockC0085614
- 1st degree heart blockC0085614
- AV Block First DegreeC0085614
- AV block first degreeC0085614
- Atrioventricular block first degreeC0085614
- Atrioventricular block, first degreeC0085614
- Atrioventricular block, first-degreeC0085614
- Atrioventricular conduction time prolongedC0085614
- First Degree AV BlockC0085614
- First Degree Atrioventricular BlockC0085614
- First degree atrioventricular blockC0085614
- First degree atrioventricular block (disorder)C0085614
- First degree heart blockC0085614
- First-degree atrioventricular blockC0085614
- Heart block 1st degreeC0085614
- Heart block AV first degreeC0085614
- Heart block first degreeC0085614
- Incomplete atrioventricular block, first degreeC0085614
- av first degree blockC0085614
- block degree first heartC0085614
- first degree av blockC0085614
- first degree heart blockC0085614
Clinical Terms
- First-degree atrioventricular block
- first degree heart block
- First Degree AV Block
- Atrioventricular conduction time prolonged
- AV Block First Degree
- First degree atrioventricular block
- Heart block first degree
- Heart block 1st degree
- Incomplete atrioventricular block
- 1st degree heart block
- 1st degree av block
- Heart block AV first degree
- block degree first heart
- Partial heart block
- First degree atrioventricular block (disorder)
- Incomplete heart block
- Incomplete atrioventricular block, first degree
- Partial atrioventricular block
- Atrioventricular block first degree
- Atrioventricular block, first-degree
- av first degree block
Frequently Asked Questions
What is the ICD-10 code for atrioventricular block, first degree?
The ICD-10-CM code for atrioventricular block, first degree is I44.0. The full clinical description is "Atrioventricular block, first degree". I44.0 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I44.0 mean?
ICD-10-CM code I44.0 represents “Atrioventricular block, first degree”. 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 I44.0 a billable code?
Yes, I44.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I44.0 in?
I44.0 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I44.0 map to?
I44.0 maps to 2 SNOMED CT concepts: 270492004, 195039008. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I44.0?
I44.0 is linked to 1 UMLS Concept Unique Identifier: C0085614. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I44.0 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like atrioventricular block, first degree 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 I44.0?
I44.0 maps to the ICD-11 code: BC63.0 (Atrioventricular block, first degree).
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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.