T21.33 Burn of third degree of upper backNon-billable ICD-10-CM code.
T22 Burn and corrosion of shoulder and upper limb, except wrist and hand ("burn and corrosion of interscapular region (T21.-)")T24 Burn and corrosion of lower limb, except ankle and foot ("burn and corrosion of hip region (T21.-)")T66 Radiation sickness, unspecified ("burns (T20-T31)")T67 Effects of heat and light ("burns (T20-T31)")T75 Other and unspecified effects of other external causes ("burns (electric) (T20-T31)")T21.31XS Burn of third degree of chest wall, sequelaT21.32 Burn of third degree of abdominal wallT21.32XA Burn of third degree of abdominal wall, initial encounterT21.32XD Burn of third degree of abdominal wall, subsequent encounterT21.32XS Burn of third degree of abdominal wall, sequelaT21.33 Burn of third degree of upper back (this code)T21.33XA Burn of third degree of upper back, initial encounterT21.33XD Burn of third degree of upper back, subsequent encounterT21.33XS Burn of third degree of upper back, sequelaT21.34 Burn of third degree of lower backT21.34XA Burn of third degree of lower back, initial encounter