Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes S00-T88 – Injury, poisoning and certain other consequences of external causes (S00-T88) > 2024 ICD-10-CM Codes S50-S59 – Injuries to the elbow and forearm (S50-S59) > 2024 ICD-10-CM Codes S56 – Injury of muscle, fascia and tendon at forearm level (S56) > 2024 ICD-10-CM Codes S56.0 – Injury of flexor muscle, fascia and tendon of thumb at forearm level (S56.0) > 2024 ICD-10-CM Codes S56.01 – Strain of flexor muscle, fascia and tendon of thumb at forearm level (S56.01)