S66.519 – Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
ICD-10-CM 2027 diagnosis code · Injuries to the wrist, hand and fingers
- Code
S66.519(claims format:S66519)- Description
- Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
- Short description
- Strain of intrinsic musc/fasc/tend unsp finger at wrs/hnd lv
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
- Block
- S60-S69 Injuries to the wrist, hand and fingers
- Parent codes
- S66 › S66.5 › S66.51
Billable codes under S66.519
S66.519 is a header code and cannot be used on claims. Choose the most specific code:
- S66.519A – Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, initial encounterBillable
- S66.519D – Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, subsequent encounterBillable
- S66.519S – Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, sequelaBillable
7th character values
Codes in this category need a 7th character to describe the encounter or episode of care.
| Character | Meaning |
|---|---|
A | initial encounter |
D | subsequent encounter |
S | sequela |
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
S66 – Injury of muscle, fascia and tendon at wrist and hand level
- sprain of joints and ligaments of wrist and hand (S63.-)
- any associated open wound (S61.-)
- The appropriate 7th character is to be added to each code from category S66
S66.5 – Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
- injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level (S66.4-)
Block S60-S69
Index terms for S66.519
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in S66.51
- S66.510 – Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand levelHeader
- S66.511 – Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand levelHeader
- S66.512 – Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand levelHeader
- S66.513 – Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand levelHeader
- S66.514 – Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand levelHeader
- S66.515 – Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand levelHeader
- S66.516 – Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand levelHeader
- S66.517 – Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand levelHeader
- S66.518 – Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand levelHeader
Frequently asked questions
What is ICD-10 code S66.519?
S66.519 is the ICD-10-CM code for strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level, in the block S60-S69 (Injuries to the wrist, hand and fingers).
Is S66.519 a billable code?
No. S66.519 is a header code with more specific child codes; report one of the billable codes listed above.
What category does S66.519 belong to?
It belongs to category S66 – Injury of muscle, fascia and tendon at wrist and hand level.
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.