M61.161 Myositis ossificans progressiva, right lower leg

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)

Nearby codes

• M61.15 Myositis ossificans progressiva, thigh
• M61.151 Myositis ossificans progressiva, right thigh
• M61.152 Myositis ossificans progressiva, left thigh
• M61.159 Myositis ossificans progressiva, unspecified thigh
• M61.16 Myositis ossificans progressiva, lower leg
• M61.161 Myositis ossificans progressiva, right lower leg (this code)
• M61.162 Myositis ossificans progressiva, left lower leg
• M61.169 Myositis ossificans progressiva, unspecified lower leg
• M61.17 Myositis ossificans progressiva, ankle, foot and toe(s)
• M61.171 Myositis ossificans progressiva, right ankle
• M61.172 Myositis ossificans progressiva, left ankle