2025 ICD-10-CM Diagnosis Code I00

by

Rheumatic fever without heart involvement

  • I00 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2025 edition of ICD-10-CM I00 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of I00 – other international versions of ICD-10 I00 may differ.

Type 1 Excludes

  • rheumatic fever with heart involvement (I01.0 -I01.9)

Includes

  • arthritis, rheumatic, acute or subacute

The following code(s) above I00 contain annotation back-references

 that may be applicable to I00:

  • I00-I99  Diseases of the circulatory system

Approximate Synonyms

  • Migratory polyarthritis
  • Rheumatic fever

ICD-10-CM I00 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 545 Connective tissue disorders with mcc
  • 546 Connective tissue disorders with cc
  • 547 Connective tissue disorders without cc/mcc

Convert I00 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 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
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Code annotations containing back-references to I00:

Diagnosis Index entries containing back-references to I00:

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