S66.518S — Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, sequela
S66.518S is a billable, specific ICD-10-CM code for strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level, sequela. It is valid for submission on a claim.
7th character "S" — sequela
The appropriate 7th character is to be added to each code from category S66
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Strain of intrinsic muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
Risk adjustment
S66.518S does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
S66.518S is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53064Billing and Coding: Outpatient Occupational Therapy
- A56787Billing and Coding: Nonvascular Extremity Ultrasound
Related codes at this level
Codes that share S66.518. If S66.518S is not quite right, the correct code is usually one of these.
Questions about S66.518S
- Is S66.518S a billable ICD-10-CM code?
- Yes. S66.518S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does S66.518S sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the wrist, hand and fingers (S60-S69).