I48.91 Unspecified atrial fibrillation

Instructional Notes:

I48.91
Description: Unspecified atrial fibrillation
↓
I48.9
Description: Unspecified atrial fibrillation and atrial flutter
↓
I48
Description: Atrial fibrillation and flutter
↓
I30-I5A
Description: Other forms of heart disease (I30-I5A)
↓
I00-I99
Description: Diseases of the circulatory system
Exclude2:
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)