L98.5 ICD-10-CM Code: Mucinosis of the skin
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
L98.5Mucinosis of the skin
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where L98.5 sits
- 1
Chapter 12
Diseases of the skin and subcutaneous tissue (L00-L99)
- 2
Section
Other disorders of the skin and subcutaneous tissue (L80-L99)
- 3
Category L98
Other disorders of skin and subcutaneous tissue, not elsewhere classified
- 4
Code L98.5
Mucinosis of the skin
Documentation details
Notes for this code
Inclusion terms
- Focal mucinosis
- Lichen myxedematosus
- Reticular erythematous mucinosis
Code first
No “code first” instruction is listed for L98.5.
Use additional code
No “use additional code” instruction is listed for L98.5.
Excludes1
Conditions that should not be reported together with this code.
- focal oral mucinosis (K13.79)
- myxedema (E03.9)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for L98.5.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code L98.5 mean?
L98.5 is the FY 2027 U.S. ICD-10-CM code for “Mucinosis of the skin.”
Is L98.5 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, L98.5 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is L98.5 located in ICD-10-CM?
L98.5 is listed in Chapter 12, Diseases of the skin and subcutaneous tissue (L00-L99), within Other disorders of the skin and subcutaneous tissue (L80-L99) (L80–L99), under category L98, Other disorders of skin and subcutaneous tissue, not elsewhere classified.
What coding notes are listed for L98.5?
Its listed inclusion terms are Focal mucinosis; Lichen myxedematosus; Reticular erythematous mucinosis. No code-first instruction is listed. Excludes1 notes: focal oral mucinosis (K13.79); myxedema (E03.9). No Excludes2 note is listed.
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