Seborrheic dermatitis, unspecified
Billable / specific
L21.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Applicable to
- Seborrhea NOS
Includes (from L21)
- Note: In this block the terms dermatitis and eczema are used synonymously and interchangeably.
Excludes2
Not included here — may be reported together when both conditions exist.
- certain conditions originating in the perinatal period (P04-P96) (from L21)
- certain infectious and parasitic diseases (A00-B99) (from L21)
- complications of pregnancy, childbirth and the puerperium (O00-O9A) (from L21)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from L21)
- endocrine, nutritional and metabolic diseases (E00-E88) (from L21)
- lipomelanotic reticulosis (I89.8) (from L21)
- neoplasms (C00-D49) (from L21)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from L21)
- systemic connective tissue disorders (M30-M36) (from L21)
- viral warts (B07.-) (from L21)
- chronic (childhood) granulomatous disease (D71-) (from L21)
- dermatitis gangrenosa (L08.0) (from L21)
- dermatitis herpetiformis (L13.0) (from L21)
- dry skin dermatitis (L85.3) (from L21)
- factitial dermatitis (L98.1) (from L21)
- perioral dermatitis (L71.0) (from L21)
- radiation-related disorders of the skin and subcutaneous tissue (L55-L59) (from L21)
- stasis dermatitis (I87.2) (from L21)
- infective dermatitis (L30.3) (from L21)
- seborrheic keratosis (L82.-) (from L21)
Also known as
- Seborrhea NOS
- Dermatitis, seborrheic
- Seborrhea, seborrheic
- Seborrhea, seborrheic, dermatitis
- Seborrhea, seborrheic, eczema
Parent code
- L21Seborrheic dermatitisHeader