ICD-10-CM L98: Other disorders of skin and subcutaneous tissue, not elsewhere classified

ICD-10-CM Diagnosis Code (2025)

Official Description for L98

Other disorders of skin and subcutaneous tissue, not elsewhere classified

Coding Notes & Guidelines for L98

Excludes1: Not Coded Here

Excoriation (skin-picking) disorder (F42.4)

Excludes1: Not Coded Here
  • focal oral mucinosis (K13.79)
  • myxedema (E03.9)
Excludes1: Not Coded Here

hyalinosis cutis et mucosae (E78.89)

Excludes2: Not Included Here
  • pyogenic granuloma of gingiva (K06.8)
  • pyogenic granuloma of maxillary alveolar ridge (K04.5)
  • pyogenic granuloma of oral mucosa (K13.4)
Excludes2: Not Included Here
  • pressure ulcer (pressure area) (L89.-)
  • gangrene (I96)
  • skin infections (L00-L08)
  • specific infections classified to A00-B99
  • ulcer of lower limb NEC (L97.-)
  • varicose ulcer (I83.0-I83.93)
Excludes2: Not Included Here
  • acquired excess or redundant skin of eyelid (H02.3-)
  • congenital excess or redundant skin of eyelid (Q10.3)
  • skin changes due to chronic exposure to nonionizing radiation (L57.-)
Inclusion Terms

Neurotic excoriation

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

Non-pressure chronic ulcer of skin NOS

Inclusion Terms
  • Focal mucinosis
  • Lichen myxedematosus
  • Reticular erythematous mucinosis
Inclusion Terms
  • Loose or sagging skin following bariatric surgery weight loss
  • Loose or sagging skin following dietary weight loss
  • Loose or sagging skin, NOS

Child Codes (More Specific Codes for L98):

L98.0 - Pyogenic granuloma L98.1 - Factitial dermatitis L98.2 - Febrile neutrophilic dermatosis [Sweet] L98.3 - Eosinophilic cellulitis [Wells] L98.4 - Non-pressure chronic ulcer of skin, not elsewhere classified L98.41 - Non-pressure chronic ulcer of buttock L98.411 - Non-pressure chronic ulcer of buttock limited to breakdown of skin L98.412 - Non-pressure chronic ulcer of buttock with fat layer exposed L98.413 - Non-pressure chronic ulcer of buttock with necrosis of muscle L98.414 - Non-pressure chronic ulcer of buttock with necrosis of bone L98.415 - Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis L98.416 - Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis L98.418 - Non-pressure chronic ulcer of buttock with other specified severity L98.419 - Non-pressure chronic ulcer of buttock with unspecified severity L98.42 - Non-pressure chronic ulcer of back L98.421 - Non-pressure chronic ulcer of back limited to breakdown of skin L98.422 - Non-pressure chronic ulcer of back with fat layer exposed L98.423 - Non-pressure chronic ulcer of back with necrosis of muscle L98.424 - Non-pressure chronic ulcer of back with necrosis of bone L98.425 - Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis L98.426 - Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis L98.428 - Non-pressure chronic ulcer of back with other specified severity L98.429 - Non-pressure chronic ulcer of back with unspecified severity L98.49 - Non-pressure chronic ulcer of skin of other sites L98.491 - Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin L98.492 - Non-pressure chronic ulcer of skin of other sites with fat layer exposed L98.493 - Non-pressure chronic ulcer of skin of other sites with necrosis of muscle L98.494 - Non-pressure chronic ulcer of skin of other sites with necrosis of bone L98.495 - Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosis L98.496 - Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosis L98.498 - Non-pressure chronic ulcer of skin of other sites with other specified severity L98.499 - Non-pressure chronic ulcer of skin of other sites with unspecified severity L98.5 - Mucinosis of the skin L98.6 - Other infiltrative disorders of the skin and subcutaneous tissue L98.7 - Excessive and redundant skin and subcutaneous tissue L98.8 - Other specified disorders of the skin and subcutaneous tissue L98.9 - Disorder of the skin and subcutaneous tissue, unspecified

About ICD-10-CM Code L98 (Other disorders of skin and subcutaneous tissue)

ICD-10-CM code L98 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM L98 became effective on October 1, 2024.

This page provides detailed information about L98 - Other disorders of skin and subcutaneous tissue, not elsewhere classified. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other disorders of skin and subcutaneous tissue related to not elsewhere classified.