2027 ICD-10-CM Diagnosis Code L30.9Dermatitis, unspecified
ICD-10-CM Codes›L00–L99›L20-L30›L30
- Billable — Valid for Submission
- Not Chronic
L30.9 is a billable ICD-10-CM diagnosis code for dermatitis, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Allergic reactions and Other specified and unspecified skin disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute dermatitis
- Acute eczema
- Acute hand eczema
- Agammaglobulinemia, microcephaly, craniosynostosis, severe dermatitis syndrome
- Chronic dermatitis
- Chronic eczema
- Chronic eczema of foot
- Chronic hand eczema
- Dermatitis of anogenital region
- Dermatitis of male genitalia
- Diffuse dermatitis
- Eczema
- Eczema of finger
- Eczema of lower leg
- Eczema of lower limb
- Eczema of male genitalia
- Eczema of nipple
- Eczema of scalp
- Eczema of wrist
- Eczema vaccinatum
- Eczematous nail dystrophy
- Exacerbation of constitutional dermatitis due to occupation
- Exacerbation of eczema
- Exudative eczema
- Facial eczema
- Fingertip eczema
- Flagellate dermatitis
- Foot eczema
- Generalized eczema
- Hand eczema
- Inflammatory dermatosis
- Injection site dermatitis
- Injection site inflammation
- Nonallergic eczema
- Perianal dermatitis
- Periocular dermatitis
- Peristomal dermatitis
- Peristomal skin complication
- Post-traumatic eczema
- Secondary eczematous condition
- Skin irritation
- Sponge dermatitis
- Subacute dermatitis
- Thelitis
- Vaccinia
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to L30.9: its own notes plus those printed at L30, block L20-L30, and Chapter 12. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Eczema NOS
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- 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.-)
Notes
General instructions on how these codes are used.
- In this block the terms dermatitis and eczema are used synonymously and interchangeably.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name L30.9, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming L30.9: they are not reported together with it, unless the two conditions are unrelated.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Dermatitis (eczematous) L30.9
Eczema (acute) (chronic) (erythematous) (fissum) (rubrum) (squamous) See Also: Dermatitis; L30.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Dermatitis
any inflammation of the skin.
Patient EducationClinical
Eczema
Eczema is a term for several different types of skin swelling. Eczema is also called dermatitis. Most types cause dry, itchy skin and rashes on the face, inside the elbows and behind the knees, and on the hands and feet. Scratching the skin can cause it to turn red, and to swell and itch even more.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert L30.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About L30.9Overview
What is the ICD-10 code for dermatitis, unspecified?
The ICD-10-CM code for dermatitis, unspecified is L30.9 (sometimes written as L309). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is L30.9 (Other and unspecified dermatitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report dermatitis, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does L30.9 group to?
When dermatitis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of L30.9?
Under the General Equivalence Mappings, dermatitis, unspecified converts to ICD-9-CM 692.9 (dermatitis NOS). The mapping is approximate, so confirm the match fits the documentation.
