Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, subsequent encounter
Billable / specificPOA exempt
S66.397D is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Includes (from S66)
- Note: 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
- Note: 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.
Excludes2
Not included here — may be reported together when both conditions exist.
- Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level (S66.2-) (from S66.3)
- birth trauma (P10-P15) (from S66)
- obstetric trauma (O70-O71) (from S66)
- burns and corrosions (T20-T32) (from S66)
- frostbite (T33-T34) (from S66)
- insect bite or sting, venomous (T63.4) (from S66)
- sprain of joints and ligaments of wrist and hand (S63.-) (from S66)
Use additional code
Add a code to identify the following, if applicable.
Code also
An additional code may be needed.
7th character
The 7th character values that apply to this code (defined at S66). Use the placeholder "X" for missing positions.
| Character | Meaning |
|---|---|
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
Parent code
- S66.397Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand levelNeeds 7th char