ICD-10-CM > S00-T88 > S20-S29 > S29 > S29.0 > S29.01 > S29.011 S29.011 Strain of muscle and tendon of front wall of thorax Non-Billable/Non-Specific Codes S29.011A..., initial encounterS29.011D..., subsequent encounterS29.011S..., sequela