S66.51
Strain of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level
Not billable — category only FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 3 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 7 never code together
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 1
Alongside this code 3 same parent — S66.5
Subordinate codes 10
S66.510 Strain of intrinsic musc/fasc/tend r idx fngr at wrs/hnd lv S66.511 Strain of intrinsic musc/fasc/tend l idx fngr at wrs/hnd lv S66.512 Strain of intrns musc/fasc/tend r mid finger at wrs/hnd lv S66.513 Strain of intrns musc/fasc/tend l mid finger at wrs/hnd lv S66.514 Strain of intrinsic musc/fasc/tend r rng fngr at wrs/hnd lv S66.515 Strain of intrinsic musc/fasc/tend l rng fngr at wrs/hnd lv S66.516 Strain intrns musc/fasc/tend r little finger at wrs/hnd lv S66.517 Strain intrns musc/fasc/tend l little finger at wrs/hnd lv S66.518 Strain of intrinsic musc/fasc/tend finger at wrs/hnd lv S66.519 Strain of intrinsic musc/fasc/tend unsp finger at wrs/hnd lv
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.