Subluxation of L4/L5 lumbar vertebra, initial encounter

This code signifies a partial dislocation of the fourth and fifth lumbar vertebrae, where the joint surfaces are no longer in proper alignment but remain in contact. This condition can lead to localized pain, muscle spasms, and neurological symptoms if nerve roots are compressed.

Apply this code when documenting the initial diagnosis and treatment of a patient presenting with a subluxation specifically affecting the L4-L5 spinal segment. This is appropriate for acute injuries, such as those resulting from trauma or sudden movements, where the patient is receiving active treatment for the first time.

• Ensure documentation clearly specifies the L4-L5 level and confirms subluxation, not a complete dislocation.
• The "A" suffix indicates an initial encounter for active treatment of the injury.
• Consider additional codes for associated neurological deficits or pain, if present.