Monoplegia of lower limb affecting left nondominant side

This code signifies paralysis affecting a single lower limb on the left side, specifically when the left side is not the patient's dominant side. It indicates a complete loss of motor function in the left leg, distinguishing it from paresis (weakness).

Apply this code when documentation clearly states monoplegia of the left lower extremity and specifies that the left side is nondominant. This is typically seen in cases of stroke, spinal cord injury, or other neurological conditions resulting in complete paralysis of one leg.

• Ensure documentation explicitly states "nondominant" for the left side; otherwise, an unspecified dominance code may be more appropriate.
• Differentiate between monoplegia (complete paralysis) and monoparesis (partial paralysis/weakness) as separate codes exist for each.
• Always code the underlying cause of the monoplegia first, followed by this code as a secondary diagnosis.