L98.5
Billable codeMucinosis of the skin
The ICD-10 code for mucinosis of the skin is L98.5.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Focal mucinosis
- Lichen myxedematosus
- Reticular erythematous mucinosis
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- L98.0Pyogenic granuloma
- L98.1Factitial dermatitis
- L98.2Febrile neutrophilic dermatosis [Sweet]
- L98.3Eosinophilic cellulitis [Wells]
- L98.4Non-pressure chronic ulcer of skin, not elsewhere classifiednon-billable header
- L98.6Other infiltrative disorders of the skin and subcutaneous tissue
- L98.7Excessive and redundant skin and subcutaneous tissue
- L98.8Other specified disorders of the skin and subcutaneous tissue
- L98.9Disorder of the skin and subcutaneous tissue, unspecified
- L98.ANon-pressure chronic ulcer of upper limb, not elsewhere classifiednon-billable header
- L98.5Mucinosis of the skin
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7018Approximate match
Associated MS-DRGs
L98.5 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 564Other Musculoskeletal System and Connective Tissue Diagnoses with MCC
- DRG 565Other Musculoskeletal System and Connective Tissue Diagnoses with CC
- DRG 566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC
- DRG 606Minor Skin Disorders with MCC
- DRG 607Minor Skin Disorders without MCC