Kodex

Section

S84.9

Injury of unspecified nerve at lower leg level

Hierarchy

S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
- S80-S89 Injuries to the knee and lower leg (S80-S89)
  - S84 Injury of nerves at lower leg level
    - S84.9 Injury of unspecified nerve at lower leg level
      - S84.90 Injury of unspecified nerve at lower leg level, unspecified leg
      - S84.91 Injury of unspecified nerve at lower leg level, right leg
      - S84.92 Injury of unspecified nerve at lower leg level, left leg

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.

Code Also

any associated open wound (S81.-)
- S81 Open wound of knee and lower leg

Use Additional

code to identify any retained foreign body, if applicable (Z18.-)
- Z18 Retained foreign body fragments

Excludes 1

P10-P15 Birth trauma (P10-P15)
obstetric trauma (O70-O71)

Excludes 2

S94 Injury of nerves at ankle and foot level

T20-T32 Burns and corrosions (T20-T32)
T33-T34 Frostbite (T33-T34)
injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
- S90-S99 Injuries to the ankle and foot (S90-S99)
insect bite or sting, venomous (T63.4)
- T63.4 Toxic effect of venom of other arthropods