M85.022
Billable codeFibrous dysplasia (monostotic), left upper arm
The ICD-10 code for fibrous dysplasia (monostotic), left upper arm is M85.022.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M85.021Fibrous dysplasia (monostotic), right upper arm
- M85.029Fibrous dysplasia (monostotic), unspecified upper arm
- M85.022Fibrous dysplasia (monostotic), left upper arm
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 73329Approximate match
Associated MS-DRGs
M85.022 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.