M79.642
ICD-10-CMThis code represents a patient's subjective complaint of pain localized to the left hand. It indicates the presence of discomfort or aching in any part of the left hand, without specifying an underlying cause or definitive diagnosis.
Apply this code when documentation clearly states "pain in left hand" as a symptom, and a more specific diagnosis for the pain (e.g., fracture, arthritis, carpal tunnel syndrome) has not yet been established or is not being reported. It is appropriate for initial encounters or when the pain is the primary reason for the visit and further investigation is pending.
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