2026 ICD-10-CM Diagnosis Code M61Calcification and ossification of muscle

ICD-10-CM Codes›M00–M99›M60-M63›M61

ICD-10-CM M61
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M61 is a non-billable ICD-10-CM category code for calcification and ossification of muscle, so it cannot be submitted on claims. Use a more specific code from this category instead, such as M61.00, M61.011, M61.012, and M61.019.

Code Identity

ICD-10-CM Code
M61
Billable Status
No — Non-Billable Category
Code Describes
Calcification and ossification of muscle
Short Description
Calcification and ossification of muscle
Same as the full description in the CMS dataset.
Chapter
M60-M63
Disorders of muscles

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM60-M63Disorders of muscles
CategoryM61Calcification and ossification of muscle
This CodeM61Calcification and ossification of muscle

Specific Coding for Calcification and ossification of muscleOverview

Non-specific codes like M61 require more characters. Use one of these billable codes instead:

  • M61.0 for Myositis ossificans traumatica

  • Use M61.00 for Myositis ossificans traumatica, unspecified site

  • M61.01 for Myositis ossificans traumatica, shoulder

  • M61.02 for Myositis ossificans traumatica, upper arm

  • M61.03 for Myositis ossificans traumatica, forearm

  • M61.04 for Myositis ossificans traumatica, hand

  • M61.05 for Myositis ossificans traumatica, thigh

  • M61.06 for Myositis ossificans traumatica, lower leg

  • M61.07 for Myositis ossificans traumatica, ankle and foot

  • Use M61.08 for Myositis ossificans traumatica, other site

  • Use M61.09 for Myositis ossificans traumatica, multiple sites

  • M61.1 for Myositis ossificans progressiva

  • Use M61.10 for Myositis ossificans progressiva, unspecified site

  • M61.11 for Myositis ossificans progressiva, shoulder

  • M61.12 for Myositis ossificans progressiva, upper arm

  • M61.13 for Myositis ossificans progressiva, forearm

  • M61.14 for Myositis ossificans progressiva, hand and finger(s)

  • M61.15 for Myositis ossificans progressiva, thigh

  • M61.16 for Myositis ossificans progressiva, lower leg

  • M61.17 for Myositis ossificans progressiva, ankle, foot and toe(s)

  • Use M61.18 for Myositis ossificans progressiva, other site

  • Use M61.19 for Myositis ossificans progressiva, multiple sites

  • M61.2 for Paralytic calcification and ossification of muscle

  • Use M61.20 for Paralytic calcification and ossification of muscle, unspecified site

  • M61.21 for Paralytic calcification and ossification of muscle, shoulder

  • M61.22 for Paralytic calcification and ossification of muscle, upper arm

  • M61.23 for Paralytic calcification and ossification of muscle, forearm

  • M61.24 for Paralytic calcification and ossification of muscle, hand

  • M61.25 for Paralytic calcification and ossification of muscle, thigh

  • M61.26 for Paralytic calcification and ossification of muscle, lower leg

  • M61.27 for Paralytic calcification and ossification of muscle, ankle and foot

  • Use M61.28 for Paralytic calcification and ossification of muscle, other site

  • Use M61.29 for Paralytic calcification and ossification of muscle, multiple sites

  • M61.3 for Calcification and ossification of muscles associated with burns

  • Use M61.30 for Calcification and ossification of muscles associated with burns, unspecified site

  • M61.31 for Calcification and ossification of muscles associated with burns, shoulder

  • M61.32 for Calcification and ossification of muscles associated with burns, upper arm

  • M61.33 for Calcification and ossification of muscles associated with burns, forearm

  • M61.34 for Calcification and ossification of muscles associated with burns, hand

  • M61.35 for Calcification and ossification of muscles associated with burns, thigh

  • M61.36 for Calcification and ossification of muscles associated with burns, lower leg

  • M61.37 for Calcification and ossification of muscles associated with burns, ankle and foot

  • Use M61.38 for Calcification and ossification of muscles associated with burns, other site

  • Use M61.39 for Calcification and ossification of muscles associated with burns, multiple sites

  • M61.4 for Other calcification of muscle

  • Use M61.40 for Other calcification of muscle, unspecified site

  • M61.41 for Other calcification of muscle, shoulder

  • M61.42 for Other calcification of muscle, upper arm

  • M61.43 for Other calcification of muscle, forearm

  • M61.44 for Other calcification of muscle, hand

  • M61.45 for Other calcification of muscle, thigh

  • M61.46 for Other calcification of muscle, lower leg

  • M61.47 for Other calcification of muscle, ankle and foot

  • Use M61.48 for Other calcification of muscle, other site

  • Use M61.49 for Other calcification of muscle, multiple sites

  • M61.5 for Other ossification of muscle

  • Use M61.50 for Other ossification of muscle, unspecified site

  • M61.51 for Other ossification of muscle, shoulder

  • M61.52 for Other ossification of muscle, upper arm

  • M61.53 for Other ossification of muscle, forearm

  • M61.54 for Other ossification of muscle, hand

  • M61.55 for Other ossification of muscle, thigh

  • M61.56 for Other ossification of muscle, lower leg

  • M61.57 for Other ossification of muscle, ankle and foot

  • Use M61.58 for Other ossification of muscle, other site

  • Use M61.59 for Other ossification of muscle, multiple sites

  • Use M61.9 for Calcification and ossification of muscle, unspecified

Patient EducationClinical

Bone Diseases

Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and your teens, your body adds new bone faster than it removes old bone. After about age 20, you can lose bone faster than you make bone.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M61Overview

Is M61 (Calcification and ossification of muscle) a billable code?

No. This is a category header that groups the codes for calcification and ossification of muscle, and headers cannot be submitted on claims. Claims for calcification and ossification of muscle need a more specific code from this category, such as M61.00, M61.011, and M61.012.