Use additional code from category T31 or T32 to identify extent of body surface involved

Includes:

  • burns and corrosions of first degree [erythema]
  • burns and corrosions of second degree [blisters][epidermal loss]
  • burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
  1. T21 Burn and corrosion of trunk

    Includes:

    • burns and corrosion of hip region

    Excludes2

    • burns and corrosion of axilla (T22.- with fifth character 4)
    • burns and corrosion of scapular region (T22.- with fifth character 6)
    • burns and corrosion of shoulder (T22.- with fifth character 5)

    The appropriate 7th character is to be added to each code from category T21

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. T21.0 Burn of unspecified degree of trunk

      1. T21.00 Burn of unspecified degree of trunk, unspecified site

      2. T21.01 Burn of unspecified degree of chest wall

        Inclusion term(s):

        • Burn of unspecified degree of breast
      3. T21.02 Burn of unspecified degree of abdominal wall

        Inclusion term(s):

        • Burn of unspecified degree of flank
        • Burn of unspecified degree of groin
      4. T21.03 Burn of unspecified degree of upper back

        Inclusion term(s):

        • Burn of unspecified degree of interscapular region
      5. T21.04 Burn of unspecified degree of lower back

      6. T21.05 Burn of unspecified degree of buttock

        Inclusion term(s):

        • Burn of unspecified degree of anus
      7. T21.06 Burn of unspecified degree of male genital region

        Inclusion term(s):

        • Burn of unspecified degree of penis
        • Burn of unspecified degree of scrotum
        • Burn of unspecified degree of testis
      8. T21.07 Burn of unspecified degree of female genital region

        Inclusion term(s):

        • Burn of unspecified degree of labium (majus) (minus)
        • Burn of unspecified degree of perineum
        • Burn of unspecified degree of vulva
      9. T21.09 Burn of unspecified degree of other site of trunk

    2. T21.1 Burn of first degree of trunk

      1. T21.10 Burn of first degree of trunk, unspecified site

      2. T21.11 Burn of first degree of chest wall

        Inclusion term(s):

        • Burn of first degree of breast
      3. T21.12 Burn of first degree of abdominal wall

        Inclusion term(s):

        • Burn of first degree of flank
        • Burn of first degree of groin
      4. T21.13 Burn of first degree of upper back

        Inclusion term(s):

        • Burn of first degree of interscapular region
      5. T21.14 Burn of first degree of lower back

      6. T21.15 Burn of first degree of buttock

        Inclusion term(s):

        • Burn of first degree of anus
      7. T21.16 Burn of first degree of male genital region

        Inclusion term(s):

        • Burn of first degree of penis
        • Burn of first degree of scrotum
        • Burn of first degree of testis
      8. T21.17 Burn of first degree of female genital region

        Inclusion term(s):

        • Burn of first degree of labium (majus) (minus)
        • Burn of first degree of perineum
        • Burn of first degree of vulva
      9. T21.19 Burn of first degree of other site of trunk

    3. T21.2 Burn of second degree of trunk

      1. T21.20 Burn of second degree of trunk, unspecified site

      2. T21.21 Burn of second degree of chest wall

        Inclusion term(s):

        • Burn of second degree of breast
      3. T21.22 Burn of second degree of abdominal wall

        Inclusion term(s):

        • Burn of second degree of flank
        • Burn of second degree of groin
      4. T21.23 Burn of second degree of upper back

        Inclusion term(s):

        • Burn of second degree of interscapular region
      5. T21.24 Burn of second degree of lower back

      6. T21.25 Burn of second degree of buttock

        Inclusion term(s):

        • Burn of second degree of anus
      7. T21.26 Burn of second degree of male genital region

        Inclusion term(s):

        • Burn of second degree of penis
        • Burn of second degree of scrotum
        • Burn of second degree of testis
      8. T21.27 Burn of second degree of female genital region

        Inclusion term(s):

        • Burn of second degree of labium (majus) (minus)
        • Burn of second degree of perineum
        • Burn of second degree of vulva
      9. T21.29 Burn of second degree of other site of trunk

    4. T21.3 Burn of third degree of trunk

      1. T21.30 Burn of third degree of trunk, unspecified site

      2. T21.31 Burn of third degree of chest wall

        Inclusion term(s):

        • Burn of third degree of breast
      3. T21.32 Burn of third degree of abdominal wall

        Inclusion term(s):

        • Burn of third degree of flank
        • Burn of third degree of groin
      4. T21.33 Burn of third degree of upper back

        Inclusion term(s):

        • Burn of third degree of interscapular region
      5. T21.34 Burn of third degree of lower back

      6. T21.35 Burn of third degree of buttock

        Inclusion term(s):

        • Burn of third degree of anus
      7. T21.36 Burn of third degree of male genital region

        Inclusion term(s):

        • Burn of third degree of penis
        • Burn of third degree of scrotum
        • Burn of third degree of testis
      8. T21.37 Burn of third degree of female genital region

        Inclusion term(s):

        • Burn of third degree of labium (majus) (minus)
        • Burn of third degree of perineum
        • Burn of third degree of vulva
      9. T21.39 Burn of third degree of other site of trunk

    5. T21.4 Corrosion of unspecified degree of trunk

      1. T21.40 Corrosion of unspecified degree of trunk, unspecified site

      2. T21.41 Corrosion of unspecified degree of chest wall

        Inclusion term(s):

        • Corrosion of unspecified degree of breast
      3. T21.42 Corrosion of unspecified degree of abdominal wall

        Inclusion term(s):

        • Corrosion of unspecified degree of flank
        • Corrosion of unspecified degree of groin
      4. T21.43 Corrosion of unspecified degree of upper back

        Inclusion term(s):

        • Corrosion of unspecified degree of interscapular region
      5. T21.44 Corrosion of unspecified degree of lower back

      6. T21.45 Corrosion of unspecified degree of buttock

        Inclusion term(s):

        • Corrosion of unspecified degree of anus
      7. T21.46 Corrosion of unspecified degree of male genital region

        Inclusion term(s):

        • Corrosion of unspecified degree of penis
        • Corrosion of unspecified degree of scrotum
        • Corrosion of unspecified degree of testis
      8. T21.47 Corrosion of unspecified degree of female genital region

        Inclusion term(s):

        • Corrosion of unspecified degree of labium (majus) (minus)
        • Corrosion of unspecified degree of perineum
        • Corrosion of unspecified degree of vulva
      9. T21.49 Corrosion of unspecified degree of other site of trunk

    6. T21.5 Corrosion of first degree of trunk

      1. T21.50 Corrosion of first degree of trunk, unspecified site

      2. T21.51 Corrosion of first degree of chest wall

        Inclusion term(s):

        • Corrosion of first degree of breast
      3. T21.52 Corrosion of first degree of abdominal wall

        Inclusion term(s):

        • Corrosion of first degree of flank
        • Corrosion of first degree of groin
      4. T21.53 Corrosion of first degree of upper back

        Inclusion term(s):

        • Corrosion of first degree of interscapular region
      5. T21.54 Corrosion of first degree of lower back

      6. T21.55 Corrosion of first degree of buttock

        Inclusion term(s):

        • Corrosion of first degree of anus
      7. T21.56 Corrosion of first degree of male genital region

        Inclusion term(s):

        • Corrosion of first degree of penis
        • Corrosion of first degree of scrotum
        • Corrosion of first degree of testis
      8. T21.57 Corrosion of first degree of female genital region

        Inclusion term(s):

        • Corrosion of first degree of labium (majus) (minus)
        • Corrosion of first degree of perineum
        • Corrosion of first degree of vulva
      9. T21.59 Corrosion of first degree of other site of trunk

    7. T21.6 Corrosion of second degree of trunk

      1. T21.60 Corrosion of second degree of trunk, unspecified site

      2. T21.61 Corrosion of second degree of chest wall

        Inclusion term(s):

        • Corrosion of second degree of breast
      3. T21.62 Corrosion of second degree of abdominal wall

        Inclusion term(s):

        • Corrosion of second degree of flank
        • Corrosion of second degree of groin
      4. T21.63 Corrosion of second degree of upper back

        Inclusion term(s):

        • Corrosion of second degree of interscapular region
      5. T21.64 Corrosion of second degree of lower back

      6. T21.65 Corrosion of second degree of buttock

        Inclusion term(s):

        • Corrosion of second degree of anus
      7. T21.66 Corrosion of second degree of male genital region

        Inclusion term(s):

        • Corrosion of second degree of penis
        • Corrosion of second degree of scrotum
        • Corrosion of second degree of testis
      8. T21.67 Corrosion of second degree of female genital region

        Inclusion term(s):

        • Corrosion of second degree of labium (majus) (minus)
        • Corrosion of second degree of perineum
        • Corrosion of second degree of vulva
      9. T21.69 Corrosion of second degree of other site of trunk

    8. T21.7 Corrosion of third degree of trunk

      1. T21.70 Corrosion of third degree of trunk, unspecified site

      2. T21.71 Corrosion of third degree of chest wall

        Inclusion term(s):

        • Corrosion of third degree of breast
      3. T21.72 Corrosion of third degree of abdominal wall

        Inclusion term(s):

        • Corrosion of third degree of flank
        • Corrosion of third degree of groin
      4. T21.73 Corrosion of third degree of upper back

        Inclusion term(s):

        • Corrosion of third degree of interscapular region
      5. T21.74 Corrosion of third degree of lower back

      6. T21.75 Corrosion of third degree of buttock

        Inclusion term(s):

        • Corrosion of third degree of anus
      7. T21.76 Corrosion of third degree of male genital region

        Inclusion term(s):

        • Corrosion of third degree of penis
        • Corrosion of third degree of scrotum
        • Corrosion of third degree of testis
      8. T21.77 Corrosion of third degree of female genital region

        Inclusion term(s):

        • Corrosion of third degree of labium (majus) (minus)
        • Corrosion of third degree of perineum
        • Corrosion of third degree of vulva
      9. T21.79 Corrosion of third degree of other site of trunk

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.