DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

L98 Other disorders of skin and subcutaneous tissue, not elsewhere classified

  • Header · not billable

L98 is not billable. The category heads 145 billable codes in FY2027, grouped under 11 subdivisions.

Index → code

Where it sits

  1. Chapter 12 Diseases of the skin and subcutaneous tissue (L00-L99)
  2. L80-L99 Other disorders of the skin and subcutaneous tissue (L80-L99)
  3. L98 Other disorders of skin and subcutaneous tissue, not elsewhere classified
Billable codes
145
Subdivisions
11
CC / MCC codes
80 / 0
HCC V28 codes
136
New FY2027
0
Index entries
187

Codes in L98

  1. L98.0
    Pyogenic granuloma
    Billable
    Excludes2 3

    Excludes2

    • pyogenic granuloma of gingiva (K06.8) K06.8
    • pyogenic granuloma of maxillary alveolar ridge (K04.5) K04.5
    • pyogenic granuloma of oral mucosa (K13.4) K13.4
  2. L98.1
    Factitial dermatitis
    Billable
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Neurotic excoriation

    Excludes1

    • Excoriation (skin-picking) disorder (F42.4) F42.4
  3. L98.2
    Febrile neutrophilic dermatosis [Sweet]
    Billable
  4. L98.3
    Eosinophilic cellulitis [Wells]
    BillableCC
  5. L98.4
    Non-pressure chronic ulcer of skin, not elsewhere classified
    Header
    Inclusion terms 3, Excludes2 6

    Inclusion terms

    • Chronic ulcer of skin NOS
    • Tropical ulcer NOS
    • Ulcer of skin NOS

    Excludes2

    • pressure ulcer (pressure area) (L89.-) L89
    • gangrene (I96) I96
    • skin infections (L00-L08) L00 L08
    • specific infections classified to A00-B99 A00 B99
    • ulcer of lower limb NEC (L97.-) L97
    • varicose ulcer (I83.0-I83.93) I83.0 I83.93
  6. L98.41
    Non-pressure chronic ulcer of buttock
    Header
  7. L98.411
    Non-pressure chronic ulcer of buttock limited to breakdown of skin
    Billable383
  8. L98.412
    Non-pressure chronic ulcer of buttock with fat layer exposed
    Billable383
  9. L98.413
    Non-pressure chronic ulcer of buttock with necrosis of muscle
    Billable380
  10. L98.414
    Non-pressure chronic ulcer of buttock with necrosis of bone
    Billable380
  11. L98.415
    Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis
    BillableCC380
  12. L98.416
    Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis
    BillableCC380
  13. L98.418
    Non-pressure chronic ulcer of buttock with other specified severity
    BillableCC383
  14. L98.419
    Non-pressure chronic ulcer of buttock with unspecified severity
    Billable383
  15. L98.42
    Non-pressure chronic ulcer of back
    Header
  16. L98.421
    Non-pressure chronic ulcer of back limited to breakdown of skin
    Billable383
  17. L98.422
    Non-pressure chronic ulcer of back with fat layer exposed
    Billable383
  18. L98.423
    Non-pressure chronic ulcer of back with necrosis of muscle
    Billable380
  19. L98.424
    Non-pressure chronic ulcer of back with necrosis of bone
    Billable380
  20. L98.425
    Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis
    BillableCC380
  21. L98.426
    Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis
    BillableCC380
  22. L98.428
    Non-pressure chronic ulcer of back with other specified severity
    BillableCC383
  23. L98.429
    Non-pressure chronic ulcer of back with unspecified severity
    Billable383
  24. L98.43
    Non-pressure chronic ulcer of abdomen
    Header
  25. L98.431
    Non-pressure chronic ulcer of abdomen limited to breakdown of skin
    Billable383
  26. L98.432
    Non-pressure chronic ulcer of abdomen with fat layer exposed
    Billable383
  27. L98.433
    Non-pressure chronic ulcer of abdomen with necrosis of muscle
    BillableCC380
  28. L98.434
    Non-pressure chronic ulcer of abdomen with necrosis of bone
    BillableCC380
  29. L98.435
    Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosis
    BillableCC380
  30. L98.436
    Non-pressure chronic ulcer of abdomen with bone involvement without evidence of necrosis
    BillableCC380
  31. L98.438
    Non-pressure chronic ulcer of abdomen with other specified severity
    BillableCC383
  32. L98.439
    Non-pressure chronic ulcer of abdomen with unspecified severity
    Billable383
  33. L98.44
    Non-pressure chronic ulcer of chest
    Header
  34. L98.441
    Non-pressure chronic ulcer of chest limited to breakdown of skin
    Billable383
  35. L98.442
    Non-pressure chronic ulcer of chest with fat layer exposed
    Billable383
  36. L98.443
    Non-pressure chronic ulcer of chest with necrosis of muscle
    BillableCC380
  37. L98.444
    Non-pressure chronic ulcer of chest with necrosis of bone
    BillableCC380
  38. L98.445
    Non-pressure chronic ulcer of chest with muscle involvement without evidence of necrosis
    BillableCC380
  39. L98.446
    Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosis
    BillableCC380
  40. L98.448
    Non-pressure chronic ulcer of chest with other specified severity
    BillableCC383
  41. L98.449
    Non-pressure chronic ulcer of chest with unspecified severity
    Billable383
  42. L98.45
    Non-pressure chronic ulcer of neck
    Header
  43. L98.451
    Non-pressure chronic ulcer of neck limited to breakdown of skin
    Billable383
  44. L98.452
    Non-pressure chronic ulcer of neck with fat layer exposed
    Billable383
  45. L98.453
    Non-pressure chronic ulcer of neck with necrosis of muscle
    BillableCC380
  46. L98.454
    Non-pressure chronic ulcer of neck with necrosis of bone
    BillableCC380
  47. L98.455
    Non-pressure chronic ulcer of neck with muscle involvement without evidence of necrosis
    BillableCC380
  48. L98.456
    Non-pressure chronic ulcer of neck with bone involvement without evidence of necrosis
    BillableCC380
  49. L98.458
    Non-pressure chronic ulcer of neck with other specified severity
    BillableCC383
  50. L98.459
    Non-pressure chronic ulcer of neck with unspecified severity
    Billable383
  51. L98.46
    Non-pressure chronic ulcer of face
    Header
  52. L98.461
    Non-pressure chronic ulcer of face limited to breakdown of skin
    Billable383
  53. L98.462
    Non-pressure chronic ulcer of face with fat layer exposed
    Billable383
  54. L98.463
    Non-pressure chronic ulcer of face with necrosis of muscle
    BillableCC380
  55. L98.464
    Non-pressure chronic ulcer of face with necrosis of bone
    BillableCC380
  56. L98.465
    Non-pressure chronic ulcer of face with muscle involvement without evidence of necrosis
    BillableCC380
  57. L98.466
    Non-pressure chronic ulcer of face with bone involvement without evidence of necrosis
    BillableCC380
  58. L98.468
    Non-pressure chronic ulcer of face with other specified severity
    BillableCC383
  59. L98.469
    Non-pressure chronic ulcer of face with unspecified severity
    Billable383
  60. L98.47
    Non-pressure chronic ulcer of groin
    Header
  61. L98.471
    Non-pressure chronic ulcer of groin limited to breakdown of skin
    Billable383
  62. L98.472
    Non-pressure chronic ulcer of groin with fat layer exposed
    Billable383
  63. L98.473
    Non-pressure chronic ulcer of groin with necrosis of muscle
    BillableCC380
  64. L98.474
    Non-pressure chronic ulcer of groin with necrosis of bone
    BillableCC380
  65. L98.475
    Non-pressure chronic ulcer of groin with muscle involvement without evidence of necrosis
    BillableCC380
  66. L98.476
    Non-pressure chronic ulcer of groin with bone involvement without evidence of necrosis
    BillableCC380
  67. L98.478
    Non-pressure chronic ulcer of groin with other specified severity
    BillableCC383
  68. L98.479
    Non-pressure chronic ulcer of groin with unspecified severity
    Billable383
  69. L98.49
    Non-pressure chronic ulcer of skin of other sites
    Header
    Inclusion terms 1

    Inclusion terms

    • Non-pressure chronic ulcer of skin NOS
  70. L98.491
    Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin
    Billable383
  71. L98.492
    Non-pressure chronic ulcer of skin of other sites with fat layer exposed
    Billable383
  72. L98.493
    Non-pressure chronic ulcer of skin of other sites with necrosis of muscle
    Billable380
  73. L98.494
    Non-pressure chronic ulcer of skin of other sites with necrosis of bone
    Billable380
  74. L98.495
    Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosis
    BillableCC380
  75. L98.496
    Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosis
    BillableCC380
  76. L98.498
    Non-pressure chronic ulcer of skin of other sites with other specified severity
    BillableCC383
  77. L98.499
    Non-pressure chronic ulcer of skin of other sites with unspecified severity
    Billable383
  78. L98.A
    Non-pressure chronic ulcer of upper limb, not elsewhere classified
    Header
    Inclusion terms 3, Excludes2 6

    Inclusion terms

    • Chronic ulcer of upper limb NOS
    • Non-healing ulcer of upper limb
    • Ulcer of upper limb NEC

    Excludes2

    • gangrene (I96) I96
    • pressure ulcer (pressure area) (L89.-) L89
    • skin infections (L00-L08) L00 L08
    • specific infections classified to A00-B99 A00 B99
    • ulcer of lower limb NEC (L97.-) L97
    • varicose ulcer (I83.0-I83.93) I83.0 I83.93
  79. L98.A1
    Non-pressure chronic ulcer of upper arm
    Header
    Inclusion terms 1

    Inclusion terms

    • Non-pressure chronic ulcer of axilla
  80. L98.A11
    Non-pressure chronic ulcer of right upper arm
    Header
  81. L98.A111
    Non-pressure chronic ulcer of right upper arm limited to breakdown of skin
    Billable383
  82. L98.A112
    Non-pressure chronic ulcer of right upper arm with fat layer exposed
    Billable383
  83. L98.A113
    Non-pressure chronic ulcer of right upper arm with necrosis of muscle
    BillableCC380
  84. L98.A114
    Non-pressure chronic ulcer of right upper arm with necrosis of bone
    BillableCC380
  85. L98.A115
    Non-pressure chronic ulcer of right upper arm with muscle involvement without evidence of necrosis
    BillableCC380
  86. L98.A116
    Non-pressure chronic ulcer of right upper arm with bone involvement without evidence of necrosis
    BillableCC380
  87. L98.A118
    Non-pressure chronic ulcer of right upper arm with other specified severity
    BillableCC383
  88. L98.A119
    Non-pressure chronic ulcer of right upper arm with unspecified severity
    Billable383
  89. L98.A12
    Non-pressure chronic ulcer of left upper arm
    Header
  90. L98.A121
    Non-pressure chronic ulcer of left upper arm limited to breakdown of skin
    Billable383
  91. L98.A122
    Non-pressure chronic ulcer of left upper arm with fat layer exposed
    Billable383
  92. L98.A123
    Non-pressure chronic ulcer of left upper arm with necrosis of muscle
    BillableCC380
  93. L98.A124
    Non-pressure chronic ulcer of left upper arm with necrosis of bone
    BillableCC380
  94. L98.A125
    Non-pressure chronic ulcer of left upper arm with muscle involvement without evidence of necrosis
    BillableCC380
  95. L98.A126
    Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis
    BillableCC380
  96. L98.A128
    Non-pressure chronic ulcer of left upper arm with other specified severity
    BillableCC383
  97. L98.A129
    Non-pressure chronic ulcer of left upper arm with unspecified severity
    Billable383
  98. L98.A19
    Non-pressure chronic ulcer of unspecified upper arm
    Header
  99. L98.A191
    Non-pressure chronic ulcer of unspecified upper arm limited to breakdown of skin
    Billable383
  100. L98.A192
    Non-pressure chronic ulcer of unspecified upper arm with fat layer exposed
    Billable383
  101. L98.A193
    Non-pressure chronic ulcer of unspecified upper arm with necrosis of muscle
    BillableCC380
  102. L98.A194
    Non-pressure chronic ulcer of unspecified upper arm with necrosis of bone
    BillableCC380
  103. L98.A195
    Non-pressure chronic ulcer of unspecified upper arm with muscle involvement without evidence of necrosis
    BillableCC380
  104. L98.A196
    Non-pressure chronic ulcer of unspecified upper arm with bone involvement without evidence of necrosis
    BillableCC380
  105. L98.A198
    Non-pressure chronic ulcer of unspecified upper arm with other specified severity
    BillableCC383
  106. L98.A199
    Non-pressure chronic ulcer of unspecified upper arm with unspecified severity
    Billable383
  107. L98.A2
    Non-pressure chronic ulcer of forearm
    Header
  108. L98.A21
    Non-pressure chronic ulcer of right forearm
    Header
  109. L98.A211
    Non-pressure chronic ulcer of right forearm limited to breakdown of skin
    Billable383
  110. L98.A212
    Non-pressure chronic ulcer of right forearm with fat layer exposed
    Billable383
  111. L98.A213
    Non-pressure chronic ulcer of right forearm with necrosis of muscle
    BillableCC380
  112. L98.A214
    Non-pressure chronic ulcer of right forearm with necrosis of bone
    BillableCC380
  113. L98.A215
    Non-pressure chronic ulcer of right forearm with muscle involvement without evidence of necrosis
    BillableCC380
  114. L98.A216
    Non-pressure chronic ulcer of right forearm with bone involvement without evidence of necrosis
    BillableCC380
  115. L98.A218
    Non-pressure chronic ulcer of right forearm with other specified severity
    BillableCC383
  116. L98.A219
    Non-pressure chronic ulcer of right forearm with unspecified severity
    Billable383
  117. L98.A22
    Non-pressure chronic ulcer of left forearm
    Header
  118. L98.A221
    Non-pressure chronic ulcer of left forearm limited to breakdown of skin
    Billable383
  119. L98.A222
    Non-pressure chronic ulcer of left forearm with fat layer exposed
    Billable383
  120. L98.A223
    Non-pressure chronic ulcer of left forearm with necrosis of muscle
    BillableCC380
  121. L98.A224
    Non-pressure chronic ulcer of left forearm with necrosis of bone
    BillableCC380
  122. L98.A225
    Non-pressure chronic ulcer of left forearm with muscle involvement without evidence of necrosis
    BillableCC380
  123. L98.A226
    Non-pressure chronic ulcer of left forearm with bone involvement without evidence of necrosis
    BillableCC380
  124. L98.A228
    Non-pressure chronic ulcer of left forearm with other specified severity
    BillableCC383
  125. L98.A229
    Non-pressure chronic ulcer of left forearm with unspecified severity
    Billable383
  126. L98.A29
    Non-pressure chronic ulcer of unspecified forearm
    Header
  127. L98.A291
    Non-pressure chronic ulcer of unspecified forearm limited to breakdown of skin
    Billable383
  128. L98.A292
    Non-pressure chronic ulcer of unspecified forearm with fat layer exposed
    Billable383
  129. L98.A293
    Non-pressure chronic ulcer of unspecified forearm with necrosis of muscle
    BillableCC380
  130. L98.A294
    Non-pressure chronic ulcer of unspecified forearm with necrosis of bone
    BillableCC380
  131. L98.A295
    Non-pressure chronic ulcer of unspecified forearm with muscle involvement without evidence of necrosis
    BillableCC380
  132. L98.A296
    Non-pressure chronic ulcer of unspecified forearm with bone involvement without evidence of necrosis
    BillableCC380
  133. L98.A298
    Non-pressure chronic ulcer of unspecified forearm with other specified severity
    BillableCC383
  134. L98.A299
    Non-pressure chronic ulcer of unspecified forearm with unspecified severity
    Billable383
  135. L98.A3
    Non-pressure chronic ulcer of hand
    Header
  136. L98.A31
    Non-pressure chronic ulcer of right hand
    Header
  137. L98.A311
    Non-pressure chronic ulcer of right hand limited to breakdown of skin
    Billable383
  138. L98.A312
    Non-pressure chronic ulcer of right hand with fat layer exposed
    Billable383
  139. L98.A313
    Non-pressure chronic ulcer of right hand with necrosis of muscle
    BillableCC380
  140. L98.A314
    Non-pressure chronic ulcer of right hand with necrosis of bone
    BillableCC380
  141. L98.A315
    Non-pressure chronic ulcer of right hand with muscle involvement without evidence of necrosis
    BillableCC380
  142. L98.A316
    Non-pressure chronic ulcer of right hand with bone involvement without evidence of necrosis
    BillableCC380
  143. L98.A318
    Non-pressure chronic ulcer of right hand with other specified severity
    BillableCC383
  144. L98.A319
    Non-pressure chronic ulcer of right hand with unspecified severity
    Billable383
  145. L98.A32
    Non-pressure chronic ulcer of left hand
    Header
  146. L98.A321
    Non-pressure chronic ulcer of left hand limited to breakdown of skin
    Billable383
  147. L98.A322
    Non-pressure chronic ulcer of left hand with fat layer exposed
    Billable383
  148. L98.A323
    Non-pressure chronic ulcer of left hand with necrosis of muscle
    BillableCC380
  149. L98.A324
    Non-pressure chronic ulcer of left hand with necrosis of bone
    BillableCC380
  150. L98.A325
    Non-pressure chronic ulcer of left hand with muscle involvement without evidence of necrosis
    BillableCC380
  151. L98.A326
    Non-pressure chronic ulcer of left hand with bone involvement without evidence of necrosis
    BillableCC380
  152. L98.A328
    Non-pressure chronic ulcer of left hand with other specified severity
    BillableCC383
  153. L98.A329
    Non-pressure chronic ulcer of left hand with unspecified severity
    Billable383
  154. L98.A39
    Non-pressure chronic ulcer of unspecified hand
    Header
  155. L98.A391
    Non-pressure chronic ulcer of unspecified hand limited to breakdown of skin
    Billable383
  156. L98.A392
    Non-pressure chronic ulcer of unspecified hand with fat layer exposed
    Billable383
  157. L98.A393
    Non-pressure chronic ulcer of unspecified hand with necrosis of muscle
    BillableCC380
  158. L98.A394
    Non-pressure chronic ulcer of unspecified hand with necrosis of bone
    BillableCC380
  159. L98.A395
    Non-pressure chronic ulcer of unspecified hand with muscle involvement without evidence of necrosis
    BillableCC380
  160. L98.A396
    Non-pressure chronic ulcer of unspecified hand with bone involvement without evidence of necrosis
    BillableCC380
  161. L98.A398
    Non-pressure chronic ulcer of unspecified hand with other specified severity
    BillableCC383
  162. L98.A399
    Non-pressure chronic ulcer of unspecified hand with unspecified severity
    Billable383
  163. L98.5
    Mucinosis of the skin
    Billable
    Inclusion terms 3, Excludes1 2

    Inclusion terms

    • Focal mucinosis
    • Lichen myxedematosus
    • Reticular erythematous mucinosis

    Excludes1

    • focal oral mucinosis (K13.79) K13.79
    • myxedema (E03.9) E03.9
  164. L98.6
    Other infiltrative disorders of the skin and subcutaneous tissue
    Billable
    Excludes1 1

    Excludes1

    • hyalinosis cutis et mucosae (E78.89) E78.89
  165. L98.7
    Excessive and redundant skin and subcutaneous tissue
    Billable
    Inclusion terms 3, Excludes2 3

    Inclusion terms

    • Loose or sagging skin following bariatric surgery weight loss
    • Loose or sagging skin following dietary weight loss
    • Loose or sagging skin, NOS

    Excludes2

    • acquired excess or redundant skin of eyelid (H02.3-) H02.3
    • congenital excess or redundant skin of eyelid (Q10.3) Q10.3
    • skin changes due to chronic exposure to nonionizing radiation (L57.-) L57
  166. L98.8
    Other specified disorders of the skin and subcutaneous tissue
    Billable
  167. L98.9
    Disorder of the skin and subcutaneous tissue, unspecified
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Chapter 12 instructions (Excludes2 10): printed on the chapter 12 page.

Index entries

  • Sweet's disease or dermatosis → L98.2
  • Wells' disease → L98.3
  • Mucinosis (cutaneous) (focal) (papular) (reticular erythematous) (skin) → L98.5
  • Reticular erythematous mucinosis → L98.5
  • Scleromyxedema → L98.5
  • Fistula (cutaneous) → L98.8
  • Lymphocytoma, benign cutis → L98.8
  • Malibu disease → L98.8
  • Rhytidosis facialis → L98.8
  • Dermatosis → L98.9
  • Granulomapyogenic, pyogenicum (of) (skin) → L98.0
  • Granulomaseptic (skin) → L98.0
  • Granulomasuppurative (skin) → L98.0
  • Granulomatelangiectaticum (skin) → L98.0
  • Dermatitis (eczematous)artefacta → L98.1
  • Dermatitis (eczematous)facta, factitia, factitial → L98.1
  • Dermatosisfactitial → L98.1
  • Excoriation (traumatic)neurotic → L98.1
  • Neurosis, neuroticexcoriation → L98.1
  • Dermatosisfebrile neutrophilic → L98.2
  • Dermatosisneutrophilic, febrile → L98.2
  • Cellulitis (diffuse) (phlegmonous) (septic) (suppurative)eosinophilic (granulomatous) → L98.3
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativebuttock → L98.419
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeback → L98.429
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeabdomen → L98.439
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativechest → L98.449
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeneck → L98.459
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeface → L98.469
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativegroin → L98.479
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeskin (atrophic) (chronic) (neurogenic) (non-healing) (perforating) (pyogenic) (trophic) (tropical) → L98.499
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeforearm → L98.A299
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativehand → L98.A399
  • Lichenmyxedematosus → L98.5
  • Myxedema (adult) (idiocy) (infantile) (juvenile)cutis → L98.5
  • Myxedema (adult) (idiocy) (infantile) (juvenile)papular → L98.5
  • Infiltrate, infiltrationskin (lymphocytic) → L98.6
  • Excess, excessive, excessivelyskin → L98.7
  • Looseskin and subcutaneous tissue (following bariatric surgery weight loss) (following dietary weight loss) → L98.7
  • Redundant, redundancyskin → L98.7
  • Saggingskin and subcutaneous tissue (following bariatric surgery weight loss) (following dietary weight loss) → L98.7

147 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy