Some cases of Afib involve atrial fibrillation with rapid ventricular response (RVR). This is when the rapid contractions of the atria make the ventricles beat too quickly. If the ventricles beat too fast, they can't receive enough blood. So they can't meet the body's need for oxygenated blood.
In atrial fibrillation the ventricular rate can be regarded as "controlled" when the cardiac output/ventricular rate slope is positive and "uncontrolled" when the slope is negative--that is when reduction of ventricular rate would lead to increased cardiac output.
In ICD-10-CM, there are four codes to report atrial fibrillation: I48. 91 is used to report atrial fibrillation when no further specificity is available. I48.
Atrial fibrillation with rapid ventricular response (RVR) is common during critical illness.
The code for “atrial fibrillation with RVR” is I48. 91 Unspecified atrial fibrillation.
The most serious arrhythmia is ventricular fibrillation, which is an uncontrolled, irregular beat. Instead of one misplaced beat from the ventricles, you may have several impulses that begin at the same time from different locations—all telling the heart to beat.
ICD-10 code I48. 19 for Other persistent atrial fibrillation is a medical classification as listed by WHO under the range - Diseases of the circulatory system .
Unspecified atrial fibrillationI48. 91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.The 2022 edition of ICD-10-CM I48. 91 became effective on October 1, 2021.This is the American ICD-10-CM version of I48. 91 - other international versions of ICD-10 I48.
E66. 01 is morbid (severe) obesity from excess calories.