- M35.9 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 M35.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of M35.9 – other international versions of ICD-10 M35.9 may differ.
ICD-10-CM M35.9 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
Applicable To
- Autoimmune disease (systemic) NOS
- Collagen (vascular) disease 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 M35.9:
- gluten > Ataxia, ataxy, ataxic R27.0
- disease (systemic) > Autoimmune
- autoimmune NOS (systemic) > Disease, diseased
- collagen NOS (nonvascular) (vascular) > Disease, diseased
- connective tissue, systemic (diffuse) > Disease, diseased
- mesenchymal > Disease, diseased
- collagen vascular disease NEC > in (due to) G62.1
- systemic > in (due to) G62.1
- connective tissue disorder > systemic M35.9
- hidebound > Skin
- connective tissue > Syndrome