All ICD10 Codes
Chapter 19

S00–T88: Injury, Poisoning and Certain Other Consequences of External Causes

Injury, Poisoning and Certain Other Consequences of External Causes diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)
All CodesBillable Only
Internal Codes
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  • S83.90XA—

    Sprain of unspecified site of unspecified knee, initial encounter

  • S83.90XD—

    Sprain of unspecified site of unspecified knee, subsequent encounter

  • S83.90XS—

    Sprain of unspecified site of unspecified knee, sequela

  • S83.91—

    Sprain of unspecified site of right knee

  • S83.91XA—

    Sprain of unspecified site of right knee, initial encounter

  • S83.91XD—

    Sprain of unspecified site of right knee, subsequent encounter

  • S83.91XS—

    Sprain of unspecified site of right knee, sequela

  • S83.92—

    Sprain of unspecified site of left knee

  • S83.92XA—

    Sprain of unspecified site of left knee, initial encounter

  • S83.92XD—

    Sprain of unspecified site of left knee, subsequent encounter

  • S83.92XS—

    Sprain of unspecified site of left knee, sequela

  • S84—

    Injury of nerves at lower leg level

  • S84.0—

    Injury of tibial nerve at lower leg level

  • S84.00—

    Injury of tibial nerve at lower leg level, unspecified leg

  • S84.00XA—

    Injury of tibial nerve at lower leg level, unspecified leg, initial encounter

  • S84.00XD—

    Injury of tibial nerve at lower leg level, unspecified leg, subsequent encounter

  • S84.00XS—

    Injury of tibial nerve at lower leg level, unspecified leg, sequela

  • S84.01—

    Injury of tibial nerve at lower leg level, right leg

  • S84.01XA—

    Injury of tibial nerve at lower leg level, right leg, initial encounter

  • S84.01XD—

    Injury of tibial nerve at lower leg level, right leg, subsequent encounter

  • S84.01XS—

    Injury of tibial nerve at lower leg level, right leg, sequela

  • S84.02—

    Injury of tibial nerve at lower leg level, left leg

  • S84.02XA—

    Injury of tibial nerve at lower leg level, left leg, initial encounter

  • S84.02XD—

    Injury of tibial nerve at lower leg level, left leg, subsequent encounter

  • S84.02XS—

    Injury of tibial nerve at lower leg level, left leg, sequela

  • S84.1—

    Injury of peroneal nerve at lower leg level

  • S84.10—

    Injury of peroneal nerve at lower leg level, unspecified leg

  • S84.10XA—

    Injury of peroneal nerve at lower leg level, unspecified leg, initial encounter

  • S84.10XD—

    Injury of peroneal nerve at lower leg level, unspecified leg, subsequent encounter

  • S84.10XS—

    Injury of peroneal nerve at lower leg level, unspecified leg, sequela

  • S84.11—

    Injury of peroneal nerve at lower leg level, right leg

  • S84.11XA—

    Injury of peroneal nerve at lower leg level, right leg, initial encounter

  • S84.11XD—

    Injury of peroneal nerve at lower leg level, right leg, subsequent encounter

  • S84.11XS—

    Injury of peroneal nerve at lower leg level, right leg, sequela

  • S84.12—

    Injury of peroneal nerve at lower leg level, left leg

  • S84.12XA—

    Injury of peroneal nerve at lower leg level, left leg, initial encounter

  • S84.12XD—

    Injury of peroneal nerve at lower leg level, left leg, subsequent encounter

  • S84.12XS—

    Injury of peroneal nerve at lower leg level, left leg, sequela

  • S84.2—

    Injury of cutaneous sensory nerve at lower leg level

  • S84.20—

    Injury of cutaneous sensory nerve at lower leg level, unspecified leg

  • S84.20XA—

    Injury of cutaneous sensory nerve at lower leg level, unspecified leg, initial encounter

  • S84.20XD—

    Injury of cutaneous sensory nerve at lower leg level, unspecified leg, subsequent encounter

  • S84.20XS—

    Injury of cutaneous sensory nerve at lower leg level, unspecified leg, sequela

  • S84.21—

    Injury of cutaneous sensory nerve at lower leg level, right leg

  • S84.21XA—

    Injury of cutaneous sensory nerve at lower leg level, right leg, initial encounter

  • S84.21XD—

    Injury of cutaneous sensory nerve at lower leg level, right leg, subsequent encounter

  • S84.21XS—

    Injury of cutaneous sensory nerve at lower leg level, right leg, sequela

  • S84.22—

    Injury of cutaneous sensory nerve at lower leg level, left leg

  • S84.22XA—

    Injury of cutaneous sensory nerve at lower leg level, left leg, initial encounter

  • S84.22XD—

    Injury of cutaneous sensory nerve at lower leg level, left leg, subsequent encounter

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