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M05.04

⚠ Non-billable (Header)

Felty's syndrome, hand

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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Also Known As

Felty's syndrome, metacarpus and phalanges

❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

M05
  • • rheumatic fever (I00)
  • • juvenile rheumatoid arthritis (M08.-)
  • • rheumatoid arthritis of spine (M45.-)

Child Codes (3)

M05.041Felty's syndrome, right handM05.042Felty's syndrome, left handM05.049Felty's syndrome, unspecified hand

Clinical Description

ICD-10-CM code M05.04 represents felty's syndrome, hand. 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 M05.04. Coders should note that M05.04 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code M05.04?

ICD-10-CM code M05.04 is "Felty's syndrome, hand". It belongs to the category: Diseases of the musculoskeletal system and connective tissue (M00-M99).

Is M05.04 a billable ICD-10 code?

No, M05.04 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with M05.04?

M05.04 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in M05.0

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

M05.00Felty's syndrome, unspecified siteM05.01Felty's syndrome, shoulderM05.02Felty's syndrome, elbowM05.03Felty's syndrome, wristM05.05Felty's syndrome, hipM05.06Felty's syndrome, kneeM05.07Felty's syndrome, ankle and footM05.09Felty's syndrome, multiple sites

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Code Information

CodeM05.04
BillableNo — Header code
ParentM05.0
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes13 rule(s)
Excludes20 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)