L29 vs L98.1
L29 and L98.1 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on L29
neurotic excoriation (L98.1)
L98.1
Factitial dermatitis
Billable
- Chapter 12
- Diseases of the skin and subcutaneous tissue
- Section
- L80-L99
Use when the record says
- Neurotic excoriation
Indexed under
- Dermatitis › artefacta (eczematous)
- Dermatitis › facta, factitia, factitial (eczematous)
- Dermatosis › factitial
- Excoriation › neurotic (traumatic)
- Neurosis, neurotic › excoriation
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027