Convert ICD-10-CM T21.35XA to ICD-9-CM

ICD-10-CM T21.35XA converts approximately to:
  • 2015 ICD-9-CM 942.34 Full-thickness skin loss [third degree,not otherwise specified] of back [any part]
    or:
  • 2015 ICD-9-CM 942.44 Deep necrosis of underlying tissues [deep third degree] without mention of loss of a body part, of back [any part]

Note: approximate conversions between ICD-9-CM codes and ICD-10-CM codes may require clinical interpretation in order to determine the most appropriate conversion code(s) for your specific coding situation.

Source: 2020 ICD-10-CM CMS General Equivalence Mappings.