L98.5
Mucinosis of the skin
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 12 never code together
L00-L99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- lipomelanotic reticulosis (I89.8)I89.8
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- viral warts (B07.-)B07.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 3
L98.5code
Inclusion terms
- Focal mucinosis
- Lichen myxedematosus
- Reticular erythematous mucinosis
Index entries leading here 5
Alongside this code 10 same parent — 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 category L98.A Non-pressure chronic ulcer of upper limb, NEC category L98.6 Oth infiltrative disorders of the skin, subcu L98.7 Excessive and redundant skin and subcutaneous tissue L98.8 Oth disrd of the skin and subcutaneous tissue L98.9 Disorder of the skin and subcutaneous tissue, unspecified
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.