AutoICD API

I44.1

Billable

Atrioventricular block, second degree

Atrioventricular block, second degree

Status

Billable / Specific

Block

I30-I5A

Parent Code

I44

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Atrioventricular block, type I and II
  • Möbitz block, type I and II
  • Second degree block, type I and II
  • Wenckebach's block

Excludes 2

Conditions not included here, but the patient may have both

Related Codes(7)
I44.0

Atrioventricular block, first degree

BillableI44.2

Atrioventricular block, complete

BillableI44.3

Other and unspecified atrioventricular block

I44.4

Left anterior fascicular block

BillableI44.5

Left posterior fascicular block

BillableI44.6

Other and unspecified fascicular block

I44.7

Left bundle-branch block, unspecified

Billable
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

BC63.1ZAtrioventricular block, second degree, unspecifiedequivalentPrimary
Also Known As / Clinical Terms(134)

SNOMED CT

UMLS

Clinical Terms

  • Wenckebach's phenomenon
  • Incomplete atrioventricular block, second degree
  • Atrioventricular Block Second Degree
  • Second-degree heart block
  • Mobitz type I incomplete atrioventricular block
  • AV block second degree
  • Electrocardiogram: Wenckebach phenomenon
  • Heart block AV second degree
  • Second Degree Atrioventricular Block Möbitz Type I
  • AV Block Second Degree Möbitz Type I
  • Möbitz I
  • Type 1 Second Degree AV Block
  • Mobitz I
  • Mobitz Type I Second Degree AV Block
  • Second degree Mobitz type II incomplete atrioventricular block
  • Wenckebach block
  • Mobitz type 1 atrioventricular block
  • Second degree heart block
  • Mobitz I atrioventricular block
  • Second-degree atrioventricular block
  • av block degree second
  • Mobitz type II incomplete atrioventricular block
  • Möbitz block, type I and II
  • Second Degree Atrioventricular Block
  • Wenckebach phenomenon
  • Mobitz type 2 second degree atrioventricular block
  • Electrocardiographic Mobitz type II atrioventricular block
  • Incomplete atrioventricular block
  • High-grade second degree AV block
  • wenckebach
  • Heart block second degree
  • ECG: Wenckebach phenomenon
  • Mobitz type 1 second degree atrioventricular block
  • Mobitz type I incomplete atrioventricular block on electrocardiogram
  • Second degree atrioventricular block (disorder)
  • Intermittent second degree atrioventricular block
  • High degree second degree atrioventricular block
  • EKG: Mobitz type II atrioventricular block
  • Wenckebach's incomplete AV block
  • Partial heart block
  • 2nd degree heart block
  • AV Block Second Degree Mobitz Type I
  • Atrioventricular block, type I and II
  • Wenckebach's block
  • Incomplete heart block
  • Mobitz type II atrioventricular block
  • ECG: Mobitz type II atrioventricular block
  • Partial atrioventricular block
  • Mobitz type I
  • Mobitz type I Wenckebach atrioventricular block
  • Mobitz type I incomplete atrioventricular block (disorder)
  • Type 1 Second Degree Atrioventricular Block
  • Second degree atrioventricular heart block
  • second degree av block
  • Möbitz Type I Second Degree AV Block
  • Second Degree Atrioventricular Block Mobitz Type I
  • Second degree block, type I and II
  • Mobitz type I second degree atrioventricular block on electrocardiogram
Frequently Asked Questions
What is the ICD-10 code for atrioventricular block, second degree?

The ICD-10-CM code for atrioventricular block, second degree is I44.1. The full clinical description is "Atrioventricular block, second degree". I44.1 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code I44.1 mean?

ICD-10-CM code I44.1 represents “Atrioventricular block, second 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 I44.1 a billable code?

Yes, I44.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is I44.1 in?

I44.1 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).

What SNOMED CT codes does I44.1 map to?

I44.1 maps to 8 SNOMED CT concepts: 426183003, 164905008, 284941000119107, 195039008, 195042002, and 3 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for I44.1?

I44.1 is linked to 5 UMLS Concept Unique Identifiers: C0264906, C0264907, C1389015, C2882255, C2882256. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does I44.1 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like atrioventricular block, second 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 I44.1?

I44.1 maps to the ICD-11 code: BC63.1Z (Atrioventricular block, second degree, 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.