L21

Non-Billable

ChapterL00–L99

Rankcategory

Official Description

Seborrheic dermatitis

Use a more specific code (4 billable)

Metadata & Insights

Excludes2(Not included here. Code separately if applicable.)

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
lipomelanotic reticulosis (I89.8)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
systemic connective tissue disorders (M30-M36)
viral warts (B07.-)

Excludes2(Not included here. Code separately if applicable.)

chronic (childhood) granulomatous disease (D71-)
dermatitis gangrenosa (L08.0)
dermatitis herpetiformis (L13.0)
dry skin dermatitis (L85.3)
factitial dermatitis (L98.1)
perioral dermatitis (L71.0)
radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
stasis dermatitis (I87.2)

Excludes2(Not included here. Code separately if applicable.)

BillableHas subcodes

CH12Diseases of the skin and subcutaneous tissue (L00-L99)

L20-L30Dermatitis and eczema (L20-L30)

L21Seborrheic dermatitisNot billable

L21.0Seborrhea capitisBillable

L21.1Seborrheic infantile dermatitisBillable

L21.8Other seborrheic dermatitisBillable

L21.9Seborrheic dermatitis, unspecifiedBillable

The following parent sections contain instructions or notes that apply to L21:

Dermatitis and eczema (L20-L30)

chapterCH12

Diseases of the skin and subcutaneous tissue (L00-L99)

2026

No direct MS-DRG triggers identified.

Find surgical and procedural codes related to Seborrheic dermatitis.