Syphilis of muscle

This code signifies a manifestation of syphilis affecting muscle tissue, often presenting as gummas or other inflammatory lesions within the musculature. It represents a tertiary stage complication of Treponema pallidum infection, leading to localized muscle damage and dysfunction.

Use this code when documentation explicitly states "syphilis of muscle" or describes syphilitic myositis, gummatous myositis due to syphilis, or other specific muscle involvement attributed to a confirmed syphilis infection. Supporting documentation should include diagnostic findings confirming syphilis and clinical notes detailing muscle pathology.

• Ensure the documentation clearly links the muscle involvement to syphilis, rather than other causes of myositis.
• Do not use this code for general syphilis without specific muscle involvement; other codes exist for different manifestations.
• Sequence this code after the primary syphilis diagnosis (e.g., 097.9) if applicable, to show the causal relationship.