ICD-10-CM > V00-Y99 > Y90-Y99 > Y93 > Y93.B Y93.B Activities involving other muscle strengthening exercises Non-Billable/Non-Specific Codes Y93.B1Activity, exercise machines primarily for muscle strengtheningY93.B2Activity, push-ups, pull-ups, sit-upsY93.B3Activity, free weightsY93.B4Activity, pilatesY93.B9Activity, other involving muscle strengthening exercises