Medical Code Search: "Chronic atrial fibrillation"
Results for “Chronic atrial fibrillation” from ICD-10-CM and HCPCS Level II. Code titles and billable status are read from the published releases.
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources
Why these results?
How MedCoder read the search, which code set answered first, and why these codes are shown.
What MedCoder understood
- You searched
- Chronic atrial fibrillation
- Search type
- Diagnosis / condition
- Primary registry
- ICD-10-CM
- Understood as a diagnosis or condition search, so ICD-10-CM is ranked first.
Search results are not a code assignment. Review the documentation, official coding instructions, and applicable rules before selecting a code.
Recommended codes
The codes the published release carries for each pathway, each with the official evidence for the match.
Best matches
Under I48 Atrial fibrillation and flutter
Exact title · The official description is the searched wording
Why this matched
- The official description is the searched wording.
- The official description is the searched wording
- Sits under I48 Atrial fibrillation and flutter in the ICD-10-CM tabular.
- The tabular carries it at subcategory level.
- 2 codes below, all billable in the tabular hierarchy.
2 codes below, all billable
View all 2 billable child codes →Under I48 Atrial fibrillation and flutter
Title match · Official description matches the search terms
Why this matched
- The official description contains the search terms.
- Sits under I48 Atrial fibrillation and flutter in the ICD-10-CM tabular.
- The tabular carries it at billable code level.
Under I48 Atrial fibrillation and flutter
Index / inclusion term · Alphabetic Index: Fibrillation, atrial or auricular, chronic, persistent
Why this matched
- Matched through the ICD-10-CM Alphabetic Index: “Fibrillation, atrial or auricular, chronic, persistent”
- Sits under I48 Atrial fibrillation and flutter in the ICD-10-CM tabular.
- The tabular carries it at billable code level.
Related codes
Neighbouring concepts, the primary code’s own tabular relationships, and every code set’s full results.
Explore I48.2
I48.2 Chronic atrial fibrillation — what its code page carries, from the official tables.
ICD-10-CM
All 3 matches are shown above under Best matches.
HCPCS Level II: 3 matches
2 of them are shown above under Best matches.
Official source
Code titles, billable status and tabular instructions on this page are read from the published release files in force today: ICD-10-CM FY2027 (CMS and CDC), HCPCS October 2026 (CMS). Open a code to see its official instructions quoted as published, the release and file it came from, its relationships and its change history. A search result is MedCoder’s match of your words to those files, not a code assignment.