ICD-10-PCS code structure

Section:
  0 = Medical and Surgical

Body System:
  K = Muscles

Root Operation:


See Terms used in Medical and Surgical

The 4th character refers to the body part or body region.

Release

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

  • 0KNL - Abdomen Muscle, Left

    Includes:
    • External oblique muscle
    • Internal oblique muscle
    • Pyramidalis muscle
    • Rectus abdominis muscle
    • Transversus abdominis muscle
  • 0KNK - Abdomen Muscle, Right

    Includes:
    • External oblique muscle
    • Internal oblique muscle
    • Pyramidalis muscle
    • Rectus abdominis muscle
    • Transversus abdominis muscle
  • 0KN1 - Facial Muscle

    Includes:
    • Buccinator muscle
    • Corrugator supercilii muscle
    • Depressor anguli oris muscle
    • Depressor labii inferioris muscle
    • Depressor septi nasi muscle
    • Depressor supercilii muscle
    • Levator anguli oris muscle
    • Levator labii superioris alaeque nasi muscle
    • Levator labii superioris muscle
    • Mentalis muscle
    • Nasalis muscle
    • Occipitofrontalis muscle
    • Orbicularis oris muscle
    • Procerus muscle
    • Risorius muscle
    • Zygomaticus muscle
  • 0KNW - Foot Muscle, Left

    Includes:
    • Abductor hallucis muscle
    • Adductor hallucis muscle
    • Extensor digitorum brevis muscle
    • Extensor hallucis brevis muscle
    • Flexor digitorum brevis muscle
    • Flexor hallucis brevis muscle
    • Quadratus plantae muscle
  • 0KNV - Foot Muscle, Right

    Includes:
    • Abductor hallucis muscle
    • Adductor hallucis muscle
    • Extensor digitorum brevis muscle
    • Extensor hallucis brevis muscle
    • Flexor digitorum brevis muscle
    • Flexor hallucis brevis muscle
    • Quadratus plantae muscle
  • 0KND - Hand Muscle, Left

    Includes:
    • Adductor pollicis muscle
    • Hypothenar muscle
    • Palmar interosseous muscle
    • Thenar muscle
  • 0KNC - Hand Muscle, Right

    Includes:
    • Adductor pollicis muscle
    • Hypothenar muscle
    • Palmar interosseous muscle
    • Thenar muscle
  • 0KN0 - Head Muscle

    Includes:
    • Auricularis muscle
    • Masseter muscle
    • Pterygoid muscle
    • Splenius capitis muscle
    • Temporalis muscle
    • Temporoparietalis muscle
  • 0KNP - Hip Muscle, Left

    Includes:
    • Gemellus muscle
    • Gluteus maximus muscle
    • Gluteus medius muscle
    • Gluteus minimus muscle
    • Iliacus muscle
    • Iliopsoas muscle
    • Obturator muscle
    • Piriformis muscle
    • Psoas muscle
    • Quadratus femoris muscle
    • Tensor fasciae latae muscle
  • 0KNN - Hip Muscle, Right

    Includes:
    • Gemellus muscle
    • Gluteus maximus muscle
    • Gluteus medius muscle
    • Gluteus minimus muscle
    • Iliacus muscle
    • Iliopsoas muscle
    • Obturator muscle
    • Piriformis muscle
    • Psoas muscle
    • Quadratus femoris muscle
    • Tensor fasciae latae muscle
  • 0KNB - Lower Arm and Wrist Muscle, Left

    Includes:
    • Anatomical snuffbox
    • Anconeus muscle
    • Brachioradialis muscle
    • Extensor carpi radialis muscle
    • Extensor carpi ulnaris muscle
    • Flexor carpi radialis muscle
    • Flexor carpi ulnaris muscle
    • Flexor pollicis longus muscle
    • Palmaris longus muscle
    • Pronator quadratus muscle
    • Pronator teres muscle
  • 0KN9 - Lower Arm and Wrist Muscle, Right

    Includes:
    • Anatomical snuffbox
    • Anconeus muscle
    • Brachioradialis muscle
    • Extensor carpi radialis muscle
    • Extensor carpi ulnaris muscle
    • Flexor carpi radialis muscle
    • Flexor carpi ulnaris muscle
    • Flexor pollicis longus muscle
    • Palmaris longus muscle
    • Pronator quadratus muscle
    • Pronator teres muscle
  • 0KNT - Lower Leg Muscle, Left

    Includes:
    • Extensor digitorum longus muscle
    • Extensor hallucis longus muscle
    • Fibularis brevis muscle
    • Fibularis longus muscle
    • Flexor digitorum longus muscle
    • Flexor hallucis longus muscle
    • Gastrocnemius muscle
    • Peroneus brevis muscle
    • Peroneus longus muscle
    • Plantaris muscle
    • Popliteus muscle
    • Soleus muscle
    • Tibialis anterior muscle
    • Tibialis posterior muscle
  • 0KNS - Lower Leg Muscle, Right

    Includes:
    • Extensor digitorum longus muscle
    • Extensor hallucis longus muscle
    • Fibularis brevis muscle
    • Fibularis longus muscle
    • Flexor digitorum longus muscle
    • Flexor hallucis longus muscle
    • Gastrocnemius muscle
    • Peroneus brevis muscle
    • Peroneus longus muscle
    • Plantaris muscle
    • Popliteus muscle
    • Soleus muscle
    • Tibialis anterior muscle
    • Tibialis posterior muscle
  • 0KN3 - Neck Muscle, Left

    Includes:
    • Anterior vertebral muscle
    • Arytenoid muscle
    • Cricothyroid muscle
    • Infrahyoid muscle
    • Levator scapulae muscle
    • Platysma muscle
    • Scalene muscle
    • Splenius cervicis muscle
    • Sternocleidomastoid muscle
    • Suprahyoid muscle
    • Thyroarytenoid muscle
  • 0KN2 - Neck Muscle, Right

    Includes:
    • Anterior vertebral muscle
    • Arytenoid muscle
    • Cricothyroid muscle
    • Infrahyoid muscle
    • Levator scapulae muscle
    • Platysma muscle
    • Scalene muscle
    • Splenius cervicis muscle
    • Sternocleidomastoid muscle
    • Suprahyoid muscle
    • Thyroarytenoid muscle
  • 0KNM - Perineum Muscle

    Includes:
    • Bulbospongiosus muscle
    • Cremaster muscle
    • Deep transverse perineal muscle
    • Ischiocavernosus muscle
    • Levator ani muscle
    • Superficial transverse perineal muscle
  • 0KN6 - Shoulder Muscle, Left

    Includes:
    • Deltoid muscle
    • Infraspinatus muscle
    • Subscapularis muscle
    • Supraspinatus muscle
    • Teres major muscle
    • Teres minor muscle
  • 0KN5 - Shoulder Muscle, Right

    Includes:
    • Deltoid muscle
    • Infraspinatus muscle
    • Subscapularis muscle
    • Supraspinatus muscle
    • Teres major muscle
    • Teres minor muscle
  • 0KNJ - Thorax Muscle, Left

    Includes:
    • Intercostal muscle
    • Levatores costarum muscle
    • Pectoralis major muscle
    • Pectoralis minor muscle
    • Serratus anterior muscle
    • Subclavius muscle
    • Subcostal muscle
    • Transverse thoracis muscle
  • 0KNH - Thorax Muscle, Right

    Includes:
    • Intercostal muscle
    • Levatores costarum muscle
    • Pectoralis major muscle
    • Pectoralis minor muscle
    • Serratus anterior muscle
    • Subclavius muscle
    • Subcostal muscle
    • Transverse thoracis muscle
  • 0KN4 - Tongue, Palate, Pharynx Muscle

    Includes:
    • Chondroglossus muscle
    • Genioglossus muscle
    • Hyoglossus muscle
    • Inferior longitudinal muscle
    • Levator veli palatini muscle
    • Palatoglossal muscle
    • Palatopharyngeal muscle
    • Pharyngeal constrictor muscle
    • Salpingopharyngeus muscle
    • Styloglossus muscle
    • Stylopharyngeus muscle
    • Superior longitudinal muscle
    • Tensor veli palatini muscle
  • 0KNG - Trunk Muscle, Left

    Includes:
    • Coccygeus muscle
    • Erector spinae muscle
    • Interspinalis muscle
    • Intertransversarius muscle
    • Latissimus dorsi muscle
    • Quadratus lumborum muscle
    • Rhomboid major muscle
    • Rhomboid minor muscle
    • Serratus posterior muscle
    • Transversospinalis muscle
    • Trapezius muscle
  • 0KNF - Trunk Muscle, Right

    Includes:
    • Coccygeus muscle
    • Erector spinae muscle
    • Interspinalis muscle
    • Intertransversarius muscle
    • Latissimus dorsi muscle
    • Quadratus lumborum muscle
    • Rhomboid major muscle
    • Rhomboid minor muscle
    • Serratus posterior muscle
    • Transversospinalis muscle
    • Trapezius muscle
  • 0KN8 - Upper Arm Muscle, Left

    Includes:
    • Biceps brachii muscle
    • Brachialis muscle
    • Coracobrachialis muscle
    • Triceps brachii muscle
  • 0KN7 - Upper Arm Muscle, Right

    Includes:
    • Biceps brachii muscle
    • Brachialis muscle
    • Coracobrachialis muscle
    • Triceps brachii muscle
  • 0KNR - Upper Leg Muscle, Left

    Includes:
    • Adductor brevis muscle
    • Adductor longus muscle
    • Adductor magnus muscle
    • Biceps femoris muscle
    • Gracilis muscle
    • Hamstring muscle
    • Pectineus muscle
    • Quadriceps (femoris)
    • Rectus femoris muscle
    • Sartorius muscle
    • Semimembranosus muscle
    • Semitendinosus muscle
    • Vastus intermedius muscle
    • Vastus lateralis muscle
    • Vastus medialis muscle
  • 0KNQ - Upper Leg Muscle, Right

    Includes:
    • Adductor brevis muscle
    • Adductor longus muscle
    • Adductor magnus muscle
    • Biceps femoris muscle
    • Gracilis muscle
    • Hamstring muscle
    • Pectineus muscle
    • Quadriceps (femoris)
    • Rectus femoris muscle
    • Sartorius muscle
    • Semimembranosus muscle
    • Semitendinosus muscle
    • Vastus intermedius muscle
    • Vastus lateralis muscle
    • Vastus medialis muscle