- I49.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM I49.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of I49.9 – other international versions of ICD-10 I49.9 may differ.
ICD-10-CM I49.9 is grouped within Diagnostic Related Group(s):
- 308 Cardiac arrhythmia and conduction disorders with mcc
- 309 Cardiac arrhythmia and conduction disorders with cc
- 310 Cardiac arrhythmia and conduction disorders without cc/mcc
Applicable To
- Arrhythmia (cardiac) NOS
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to I49.9:
- disorder > Action, heart
- irregular > Action, heart
- heart action > Disorder (of)
- rhythm, heart > Disturbance (s)
- cardiac > Dysrhythmia
- action, heart > Irregular, irregularity
- disorder > Rhythm
- escape > Rhythm
- heart, abnormal > Rhythm