L98.5 Mucinosis of the skin

Billable ICD-10-CM code, FY2026.

Applicable to

• Focal mucinosis
• Lichen myxedematosus
• Reticular erythematous mucinosis

Excludes1 (never code together)

• focal oral mucinosis (K13.79)
• myxedema (E03.9)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 701.8 Other specified hypertrophic and atrophic conditions of skin (approximate)

Diagnosis Index entries for L98.5

• Lichen › myxedematosus
• Mucinosis (cutaneous) (focal) (papular) (reticular erythematous) (skin)
• Myxedema (adult) (idiocy) (infantile) (juvenile) › cutis
• Myxedema (adult) (idiocy) (infantile) (juvenile) › papular
• Reticular erythematous mucinosis
• Scleromyxedema

Nearby codes

• L98.A394 Non-pressure chronic ulcer of unspecified hand with necrosis of bone
• L98.A395 Non-pressure chronic ulcer of unspecified hand with muscle involvement without evidence of necrosis
• L98.A396 Non-pressure chronic ulcer of unspecified hand with bone involvement without evidence of necrosis
• L98.A398 Non-pressure chronic ulcer of unspecified hand with other specified severity
• L98.A399 Non-pressure chronic ulcer of unspecified hand with unspecified severity
• L98.5 Mucinosis of the skin (this code)
• 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