I48.9
Non-billableUnspecified atrial fibrillation and atrial flutter
Unspecified atrial fibrillation and atrial flutter
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- 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.-)
Child Codes (2)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code I48.9?
ICD-10-CM code I48.9 represents "Unspecified atrial fibrillation and atrial flutter". It is a non-billable header code — use a more specific child code for billing purposes.
Is I48.9 a billable code?
No, I48.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under I48.9.
What chapter is I48.9 in?
I48.9 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What are the subcategories under I48.9?
I48.9 has 2 child codes, including: I48.91 (Unspecified atrial fibrillation), I48.92 (Unspecified atrial flutter).
What are the UMLS CUIs for I48.9?
I48.9 is linked to 1 UMLS Concept Unique Identifier: C3264373. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.