M62.1 - Other rupture of muscle (nontraumatic)
M62.15 - Other rupture of muscle (nontraumatic), thigh
M62.151 - Other rupture of muscle (nontraumatic), right thigh
M62.152 - Other rupture of muscle (nontraumatic), left thigh
M62.159 - Other rupture of muscle (nontraumatic), unspecified thigh