T21.23 Burn of second 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)")T21.21XS Burn of second degree of chest wall, sequelaT21.22 Burn of second degree of abdominal wallT21.22XA Burn of second degree of abdominal wall, initial encounterT21.22XD Burn of second degree of abdominal wall, subsequent encounterT21.22XS Burn of second degree of abdominal wall, sequelaT21.23 Burn of second degree of upper back (this code)T21.23XA Burn of second degree of upper back, initial encounterT21.23XD Burn of second degree of upper back, subsequent encounterT21.23XS Burn of second degree of upper back, sequelaT21.24 Burn of second degree of lower backT21.24XA Burn of second degree of lower back, initial encounter