InnovaRx Innova Health Strategies
Pricing Sign in

S66.395

Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level

Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 7 never code together
S66.3code
Excludes2
  • Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level (S66.2-)S66.2-
S66code
Excludes2
  • sprain of joints and ligaments of wrist and hand (S63.-)S63.-
S60-S69block
Excludes2
  • burns and corrosions (T20-T32)T20-T32
  • frostbite (T33-T34)T33-T34
  • insect bite or sting, venomous (T63.4)T63.4
S00-T88chapter
Excludes2

Excludes2 — not included here, but the patient may have both. Code both when documented.

7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
S66code
Code also
  • any associated open wound (S61.-)S61.-
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
  • Injury T14.90
    • muscle (and fascia) (and tendon)
      • finger
        • index
          • extensor (forearm level)
        • little
          • extensor (forearm level)
        • middle
          • extensor (forearm level)
        • ring
          • extensor (forearm level)
Alongside this code 9 same parent — S66.39
S66.390 Inj extensor musc/fasc/tend right index finger at wrs/hnd lv category S66.391 Inj extensor musc/fasc/tend left index finger at wrs/hnd lv category S66.392 Inj extensor musc/fasc/tend r mid finger at wrs/hnd lv category S66.393 Inj extensor musc/fasc/tend left middle finger at wrs/hnd lv category S66.394 Inj extensor musc/fasc/tend right ring finger at wrs/hnd lv category S66.396 Inj extensor musc/fasc/tend r little finger at wrs/hnd lv category S66.397 Inj extensor musc/fasc/tend left little finger at wrs/hnd lv category S66.398 Inj extensor musc/fasc/tend finger at wrist and hand level category S66.399 Inj extensor musc/fasc/tend unsp finger at wrs/hnd lv category
Subordinate codes 3
S66.395A Inj extensor musc/fasc/tend l rng fngr at wrs/hnd lv, init S66.395D Inj extensor musc/fasc/tend l rng fngr at wrs/hnd lv, subs S66.395S Inj extn musc/fasc/tend l rng fngr at wrs/hnd lv, sequela
Medications 2
2 Chemical and Drug Induced Liver Injury drugs 1 Chemical and Drug Induced Liver Injury, Chronic drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
no
Code set
FY2026
Parent
S66.39
Block
S60-S69
Siblings
9
Subordinate
3

Present FY2024–FY2027.