- C96.6 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 C96.6 became effective on October 1, 2022.
- This is the American ICD-10-CM version of C96.6 – other international versions of ICD-10 C96.6 may differ.
ICD-10-CM C96.6 is grouped within Diagnostic Related Group(s):
- 642 Inborn and other disorders of metabolism
Applicable To
- Eosinophilic granuloma
- Histiocytosis X, unifocal
- Histiocytosis X NOS
- Langerhans-cell histiocytosis NOS
Type 1 Excludes
- multifocal and multisysemic (disseminated) Langerhans-cell histiocytosis (C96.0)
- multifocal and unisystemic Langerhans-cell histiocytosis (C96.5)
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 C96.6:
- bone > Granuloma L92.9
- eosinophilic > bone C96.6
- lung > bone C96.6
- eosinophilic > Granuloma L92.9
- bone > eosinophilic C96.6
- lung > eosinophilic C96.6
- eosinophilic > lung (infectious) B38.1
- Langerhans\’ cell NEC > Histiocytosis D76.3
- unifocal (X) > Langerhans\’ cell NEC C96.6
- Langerhans\’ cells > mononuclear phagocytes NEC D76.1
- X NEC > Histiocytosis D76.3
- chronic > X NEC C96.6
- unifocal > X NEC C96.6