Chapter 12

L00–L99: Diseases of the Skin and Subcutaneous Tissue

Diseases of the Skin and Subcutaneous Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)
Internal Codes
  • L89.139

    Pressure ulcer of right lower back, unspecified stage

  • L89.14

    Pressure ulcer of left lower back

  • L89.140

    Pressure ulcer of left lower back, unstageable

  • L89.141

    Pressure ulcer of left lower back, stage 1

  • L89.142

    Pressure ulcer of left lower back, stage 2

  • L89.143

    Pressure ulcer of left lower back, stage 3

  • L89.144

    Pressure ulcer of left lower back, stage 4

  • L89.146

    Pressure-induced deep tissue damage of left lower back

  • L89.149

    Pressure ulcer of left lower back, unspecified stage

  • L89.15

    Pressure ulcer of sacral region

  • L89.150

    Pressure ulcer of sacral region, unstageable

  • L89.151

    Pressure ulcer of sacral region, stage 1

  • L89.152

    Pressure ulcer of sacral region, stage 2

  • L89.153

    Pressure ulcer of sacral region, stage 3

  • L89.154

    Pressure ulcer of sacral region, stage 4

  • L89.156

    Pressure-induced deep tissue damage of sacral region

  • L89.159

    Pressure ulcer of sacral region, unspecified stage

  • L89.2

    Pressure ulcer of hip

  • L89.20

    Pressure ulcer of unspecified hip

  • L89.200

    Pressure ulcer of unspecified hip, unstageable

  • L89.201

    Pressure ulcer of unspecified hip, stage 1

  • L89.202

    Pressure ulcer of unspecified hip, stage 2

  • L89.203

    Pressure ulcer of unspecified hip, stage 3

  • L89.204

    Pressure ulcer of unspecified hip, stage 4

  • L89.206

    Pressure-induced deep tissue damage of unspecified hip

  • L89.209

    Pressure ulcer of unspecified hip, unspecified stage

  • L89.21

    Pressure ulcer of right hip

  • L89.210

    Pressure ulcer of right hip, unstageable

  • L89.211

    Pressure ulcer of right hip, stage 1

  • L89.212

    Pressure ulcer of right hip, stage 2

  • L89.213

    Pressure ulcer of right hip, stage 3

  • L89.214

    Pressure ulcer of right hip, stage 4

  • L89.216

    Pressure-induced deep tissue damage of right hip

  • L89.219

    Pressure ulcer of right hip, unspecified stage

  • L89.22

    Pressure ulcer of left hip

  • L89.220

    Pressure ulcer of left hip, unstageable

  • L89.221

    Pressure ulcer of left hip, stage 1

  • L89.222

    Pressure ulcer of left hip, stage 2

  • L89.223

    Pressure ulcer of left hip, stage 3

  • L89.224

    Pressure ulcer of left hip, stage 4

  • L89.226

    Pressure-induced deep tissue damage of left hip

  • L89.229

    Pressure ulcer of left hip, unspecified stage

  • L89.3

    Pressure ulcer of buttock

  • L89.30

    Pressure ulcer of unspecified buttock

  • L89.300

    Pressure ulcer of unspecified buttock, unstageable

  • L89.301

    Pressure ulcer of unspecified buttock, stage 1

  • L89.302

    Pressure ulcer of unspecified buttock, stage 2

  • L89.303

    Pressure ulcer of unspecified buttock, stage 3

  • L89.304

    Pressure ulcer of unspecified buttock, stage 4

  • L89.306

    Pressure-induced deep tissue damage of unspecified buttock

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