M71.342
ICD-10-CMThis code signifies the presence of a non-inflammatory, fluid-filled sac (bursal cyst) located in the left hand. These cysts typically arise from the synovial lining of a bursa, often due to chronic irritation or trauma, and can cause localized swelling or discomfort.
Use this code when documentation confirms a diagnosis of a bursal cyst specifically affecting the left hand, and the provider has ruled out other etiologies such as infection or tumor. This code is appropriate for both initial encounters and subsequent follow-up visits related to the management of the bursal cyst.
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