M79.64 – Pain in hand and fingers

ICD-10-CM 2027 diagnosis code · Other soft tissue disorders

Non-billable header

ICD-10-CM code M79.64

Code: M79.64 (claims format: M7964)
Description: Pain in hand and fingers
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M70-M79 Other soft tissue disorders
Parent codes: M79 › M79.6

Billable codes under M79.64

M79.64 is a header code and cannot be used on claims. Choose the most specific code:

M79.641 – Pain in right handBillable
M79.642 – Pain in left handBillable
M79.643 – Pain in unspecified handBillable
M79.644 – Pain in right finger(s)Billable
M79.645 – Pain in left finger(s)Billable
M79.646 – Pain in unspecified finger(s)Billable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M79 – Other and unspecified soft tissue disorders, not elsewhere classified

Excludes1 (not coded here):

psychogenic rheumatism (F45.8)
soft tissue pain, psychogenic (F45.41)

M79.6 – Pain in limb, hand, foot, fingers and toes

Excludes2 (not included here):

pain in joint (M25.5-)

Index terms for M79.64

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in M79.6

M79.60 – Pain in limb, unspecifiedHeader
M79.62 – Pain in upper armHeader
M79.63 – Pain in forearmHeader
M79.65 – Pain in thighHeader
M79.66 – Pain in lower legHeader
M79.67 – Pain in foot and toesHeader

Frequently asked questions

What is ICD-10 code M79.64?

M79.64 is the ICD-10-CM code for pain in hand and fingers, in the block M70-M79 (Other soft tissue disorders).

Is M79.64 a billable code?

No. M79.64 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M79.64 belong to?

It belongs to category M79 – Other and unspecified soft tissue disorders, not elsewhere classified.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.