- I00 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 I00 became effective on October 1, 2022.
- This is the American ICD-10-CM version of I00 – other international versions of ICD-10 I00 may differ.
ICD-10-CM I00 is grouped within Diagnostic Related Group(s):
- 545 Connective tissue disorders with mcc
- 546 Connective tissue disorders with cc
- 547 Connective tissue disorders without cc/mcc
Type 1 Excludes
- rheumatic fever with heart involvement (I01.0 -I01.9)
Includes
- arthritis, rheumatic, acute or subacute
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 I00:
- in acute rheumatic fever (due to) > marginatum L53.2
- rheumatic (active) (acute) (chronic) (subacute) > Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
- rheumatic fever > in (due to) A42.0
- rheumatic > Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) J18.9
- pneumonia > Rheumatic (acute) (subacute)