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M63.82

⚠ Non-billable (Header)

Disorders of muscle in diseases classified elsewhere, upper arm

Diseases of the musculoskeletal system and connective tissue (M00-M99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

M63
  • • myopathy in cysticercosis (B69.81)
  • • myopathy in endocrine diseases (G73.7)
  • • myopathy in metabolic diseases (G73.7)
  • • myopathy in sarcoidosis (D86.87)
  • • myopathy in secondary syphilis (A51.49)
  • • myopathy in syphilis (late) (A52.78)
  • • myopathy in toxoplasmosis (B58.82)
  • • myopathy in tuberculosis (A18.09)

📋 Code Instructions

inherited
M63
  • • Code first: underlying disease, such as:
  • • Code first: leprosy (A30.-)
  • • Code first: neoplasm (C49.-, C79.89, D21.-, D48.1-)
  • • Code first: schistosomiasis (B65.-)
  • • Code first: trichinellosis (B75)

Child Codes (3)

M63.821Disorders of muscle in diseases classified elsewhere, right upper armM63.822Disorders of muscle in diseases classified elsewhere, left upper armM63.829Disorders of muscle in diseases classified elsewhere, unspecified upper arm

Clinical Description

ICD-10-CM code M63.82 represents disorders of muscle in diseases classified elsewhere, upper arm. This code falls under the Diseases of the musculoskeletal system and connective tissue (M00-M99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 6-character code at the 5th level of specificity. There are 3 more specific child codes under M63.82. Coders should note that M63.82 has 8 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code M63.82?

ICD-10-CM code M63.82 is "Disorders of muscle in diseases classified elsewhere, upper arm". It belongs to the category: Diseases of the musculoskeletal system and connective tissue (M00-M99).

Is M63.82 a billable ICD-10 code?

No, M63.82 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with M63.82?

M63.82 has 8 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in M63.8

Other codes in the same category that may be relevant for differential coding:

M63.80Disorders of muscle in diseases classified elsewhere, unspecified siteM63.81Disorders of muscle in diseases classified elsewhere, shoulderM63.83Disorders of muscle in diseases classified elsewhere, forearmM63.84Disorders of muscle in diseases classified elsewhere, handM63.85Disorders of muscle in diseases classified elsewhere, thighM63.86Disorders of muscle in diseases classified elsewhere, lower legM63.87Disorders of muscle in diseases classified elsewhere, ankle and footM63.88Disorders of muscle in diseases classified elsewhere, other siteM63.89Disorders of muscle in diseases classified elsewhere, multiple sites

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Code Information

CodeM63.82
BillableNo — Header code
ParentM63.8
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes18 rule(s)
Excludes20 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)