2022 ICD-10-CM Code I44.4
Left anterior fascicular block
Valid for Submission
| ICD-10: | I44.4 |
| Short Description: | Left anterior fascicular block |
| Long Description: | Left anterior fascicular block |
Code Classification
I44.4 is a billable diagnosis code used to specify a medical diagnosis of left anterior fascicular block. The code I44.4 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code I44.4 might also be used to specify conditions or terms like bifascicular block, bifascicular block on electrocardiogram, ekg: left bundle branch block, ekg: left bundle branch block, ekg: right bundle branch block , left anterior fascicular block, etc.
The code I44.4 is not usually sufficient justification for admission to an acute care hospital when used as a principal diagnosis.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code I44.4 are found in the index:
- - Block, blocked
- - bundle-branch (complete) (false) (incomplete) - I45.4
- - fascicular (left) - I44.60
- - anterior - I44.4
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
- Questionable admission codes - Some diagnoses are not usually sufficient justification for admission to an acute care hospital. For example, if a patient is given code R030 for elevated blood pressure reading, without diagnosis of hypertension, then the patient would have a questionable admission, since elevated blood pressure reading is not normally sufficient justification for admission to a hospital. The following list contains diagnosis codes identified as questionable admission when used.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Bifascicular block
- Bifascicular block on electrocardiogram
- EKG: left bundle branch block
- EKG: left bundle branch block
- EKG: right bundle branch block
- Left anterior fascicular block
- Left anterior fascicular block
- Left anterior fascicular block on electrocardiogram
- Left anterior fascicular block on electrocardiogram
- Monofascicular block
- Monofascicular block
- Right bundle branch block AND left anterior fascicular block
- Right bundle branch block and left anterior fascicular block on electrocardiogram
- Right bundle branch block with left bundle branch block
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code I44.4 is grouped in the following groups for version MS-DRG V39.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2021 through 09/30/2022.
| MS-DRG | MS-DRG Title | MCD | Relative Weight |
|---|---|---|---|
| 308 | CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH MCC | 05 | 1.1993 |
| 309 | CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH CC | 05 | 0.7494 |
| 310 | CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITHOUT CC/MCC | 05 | 0.5584 |
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert I44.4 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code I44.4 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 426.2 - Left bb hemiblock (Approximate Flag)
Information for Patients
Arrhythmia
An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat.
Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias.
Symptoms of arrhythmias include
- Fast or slow heart beat
- Skipping beats
- Lightheadedness or dizziness
- Chest pain
- Shortness of breath
- Sweating
Your doctor can run tests to find out if you have an arrhythmia. Treatment to restore a normal heart rhythm may include medicines, an implantable cardioverter-defibrillator (ICD) or pacemaker, or sometimes surgery.
NIH: National Heart, Lung, and Blood Institute
[Learn More in MedlinePlus]
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)