U.S. category index · FY 2027

M ICD-10-CM Categories: Category Index

Browse 79 top-level ICD-10-CM categories beginning with M, then follow their complete FY 2027 child-code hierarchies.

Complete category list

Categories beginning with M

Open a category to continue through its complete hierarchy of more specific codes.

Pyogenic arthritis

Direct infections of joint in infectious and parasitic diseases classified elsewhere

Postinfective and reactive arthropathies

Autoinflammatory syndromes

Rheumatoid arthritis with rheumatoid factor

Other rheumatoid arthritis

Enteropathic arthropathies

Juvenile arthritis

Gout

Other crystal arthropathies

Other and unspecified arthropathy

Other arthritis

Arthropathies in other diseases classified elsewhere

Polyosteoarthritis

Osteoarthritis of hip

Osteoarthritis of knee

Osteoarthritis of first carpometacarpal joint

Other and unspecified osteoarthritis

Chronic gout

Acquired deformities of fingers and toes

Other acquired deformities of limbs

Disorder of patella

Internal derangement of knee

Other specific joint derangements

Other joint disorder, not elsewhere classified

Dentofacial anomalies [including malocclusion]

Other diseases of jaws

Polyarteritis nodosa and related conditions

Other necrotizing vasculopathies

Systemic lupus erythematosus (SLE)

Dermatopolymyositis

Systemic sclerosis [scleroderma]

Other systemic involvement of connective tissue

Systemic disorders of connective tissue in diseases classified elsewhere

Kyphosis and lordosis

Scoliosis

Spinal osteochondrosis

Other deforming dorsopathies

Ankylosing spondylitis

Other inflammatory spondylopathies

Spondylosis

Other spondylopathies

Spondylopathies in diseases classified elsewhere

Cervical disc disorders

Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders

Other and unspecified dorsopathies, not elsewhere classified

Dorsalgia

Myositis

Calcification and ossification of muscle

Other disorders of muscle

Disorders of muscle in diseases classified elsewhere

Synovitis and tenosynovitis

Spontaneous rupture of synovium and tendon

Other disorders of synovium and tendon

Soft tissue disorders related to use, overuse and pressure

Other bursopathies

Fibroblastic disorders

Shoulder lesions

Enthesopathies, lower limb, excluding foot

Other enthesopathies

Other and unspecified soft tissue disorders, not elsewhere classified

Osteoporosis with current pathological fracture

Osteoporosis without current pathological fracture

Adult osteomalacia

Disorder of continuity of bone

Other disorders of bone density and structure

Osteomyelitis

Osteonecrosis

Osteitis deformans [Paget's disease of bone]

Other disorders of bone

Osteopathies in diseases classified elsewhere

Juvenile osteochondrosis of hip and pelvis

Other juvenile osteochondrosis

Other osteochondropathies

Other disorders of cartilage

Other acquired deformities of musculoskeletal system and connective tissue

Intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified

Periprosthetic fracture around internal prosthetic joint

Biomechanical lesions, not elsewhere classified

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This category index is generated from Vero’s repository-backed ICD-10-CM hierarchy. Every listed category is a top-level record, and each linked category page exposes its direct child codes.

Review the CDC/NCHS ICD-10-CM source

Category navigation

Frequently asked questions

Which ICD-10-CM categories begin with M?

This index lists 79 top-level categories beginning with M from Vero’s FY 2027 U.S. ICD-10-CM reference dataset.

How do I find a more specific M code?

Open a category below, then follow its linked child-code hierarchy until you reach the code supported by the documentation.

Which ICD-10-CM release does this M index use?

The index uses the FY 2027 U.S. ICD-10-CM release and the repository-backed hierarchy displayed on each linked code page.

Is every M category billable?

No. These are top-level categories used for navigation. Follow the hierarchy to a sufficiently specific code and confirm the active code set, official guidance, and payer requirements.

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

No credit card required

Cancel anytime