M61.18 Myositis ossificans progressiva, other site

Billable ICD-10-CM code, FY2026.

Applies from M61.1 Myositis ossificans progressiva

Applicable to

• Fibrodysplasia ossificans progressiva

MS-DRG index

Defines the logic of DRG(s) 557-558 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 728.11 Progressive myositis ossificans (approximate)

Diagnosis Index entries for M61.18

• Myositis › ossificans or ossifying (circumscripta) › progressiva › specified site NEC

Nearby codes

• M61.175 Myositis ossificans progressiva, left foot
• M61.176 Myositis ossificans progressiva, unspecified foot
• M61.177 Myositis ossificans progressiva, right toe(s)
• M61.178 Myositis ossificans progressiva, left toe(s)
• M61.179 Myositis ossificans progressiva, unspecified toe(s)
• M61.18 Myositis ossificans progressiva, other site (this code)
• M61.19 Myositis ossificans progressiva, multiple sites
• M61.2 Paralytic calcification and ossification of muscle
• M61.20 Paralytic calcification and ossification of muscle, unspecified site
• M61.21 Paralytic calcification and ossification of muscle, shoulder
• M61.211 Paralytic calcification and ossification of muscle, right shoulder