Inj cutan sensory nerve at forarm lv, unsp arm, sequela

This code signifies a lasting effect or complication stemming from a past injury to a sensory nerve in the forearm. This nerve damage affects the skin's sensation and the specific arm involved is not documented. The "sequela" aspect indicates that the initial injury has healed, but its residual effects are still present.

This code is appropriate for documenting chronic sensory deficits, such as persistent numbness, tingling, or altered sensation in the forearm, that are directly attributable to a previous, resolved injury. It should be used when the original injury event is no longer acute and the current encounter addresses the long-term consequences.

• Requires a seventh character "S" to indicate sequela, meaning the current encounter is for the late effects of the injury.
• Only use when the specific arm (left or right) is not documented in the medical record.
• Consider adding an external cause code (V, W, X, Y category) if the original cause of the injury is known and relevant for the encounter.