M60.121Billable

Interstitial myositis, right upper arm

Chapter
13. Diseases of the musculoskeletal system and connective tissue
Category
M60
Effective date
October 1, 2026

Related codes in category M60

Frequently asked questions

What is ICD-10 code M60.121?

M60.121 is an ICD-10-CM diagnosis code for Interstitial myositis, right upper arm.

Is M60.121 a billable code?

Yes. M60.121 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is M60.121 in?

M60.121 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.

When did M60.121 become effective?

M60.121 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to M60.121?

M60.121 belongs to category M60, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.