Infective myositis, unspecified right arm

This code signifies inflammation of the muscle tissue in the right arm due to an infectious agent, without further specification of the type of infection. It represents a general diagnosis of muscle infection affecting the right upper extremity.

Apply this code when documentation indicates an infection of the muscle in the right arm, but the specific pathogen (e.g., bacterial, viral, fungal) is not identified. This code is appropriate when the physician's diagnosis explicitly states "infective myositis of the right arm" or similar, and no further detail regarding the infectious agent is provided.

• Ensure documentation specifies the right arm; otherwise, an unspecified laterality code should be used.
• Avoid using this code if a more specific type of infective myositis (e.g., pyomyositis, viral myositis) is documented.
• Always review for any associated systemic infection codes that may need to be sequenced first, depending on the circumstances.