ICD-10-CM
ICD-10 code for Charley-horse (quadriceps): M62.831
The ICD-10-CM index points "Charley-horse (quadriceps)" to M62.831, Muscle spasm of calf. M62.831 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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