Dermatitis ICD-10-CM Codes

What ICD-10 codes are used for dermatitis?

Dermatitis ICD codes refer to a set of unique codes utilized for accurate documentation and diagnosis of various forms of dermatitis. The following are commonly used codes:

• L30.9: Dermatitis, unspecified: This code is used when the specific form of dermatitis is not specified in the medical documentation.
• L30.0: Nummular dermatitis: This code denotes a type of dermatitis characterized by coin-shaped spots on the skin.
• L30.1: Dyshidrosis [pompholyx]: This code is used for a particular type of dermatitis that causes hand and foot blisters.
• L30.2: Cutaneous autosensitization: This code denotes dermatitis caused by an allergic reaction to the skin.
• L30.3: Infective dermatitis: Used for dermatitis arising due to an infection.
• L30.4: Erythema intertrigo: This code signifies a form of dermatitis that causes inflammation in the skin folds.

Which dermatitis ICD codes are billable?

In medical billing, the following codes are considered:

• L30.9: Yes, billable. Used when the form of dermatitis is unspecified.
• L30.0: Yes, billable. Specific to Nummular Dermatitis.
• L30.1: Yes, billable. Applied to cases of Dyshidrosis [pompholyx].
• L30.2: Yes, billable. Used when dermatitis is caused by an allergic reaction, i.e., cutaneous autosensitization.
• L30.3: Yes, billable. Used when dermatitis arises from an infection.
• L30.4: Yes, billable. This code refers to Erythema intertrigo.

Clinical information

Dermatitis is a general term for inflammation of the skin and encompasses various types with distinct triggers and presentations. It often presents with redness, swelling, itching, and sometimes blistering or skin flaking. Understanding the clinical variations of dermatitis is essential for appropriate diagnosis, management, and ICD-10-CM coding.

Contact dermatitis is one of the most common categories and includes two main subtypes:

• Allergic contact dermatitis is an immune-mediated skin reaction triggered by exposure to allergens such as dyes, adhesives, or cosmetics. In dyes allergic contact dermatitis, patients develop a rash after contact with certain textile or hair product dyes. Cosmetic allergic contact dermatitis may arise from fragrances, preservatives, or other allergenic compounds in personal care items. Adhesive allergic contact dermatitis is frequently linked to medical tapes or bandages.
• Irritant contact dermatitis results from direct chemical damage to the skin, rather than an immune response. Irritant contact dermatitis due to soaps, detergents, or solvents is common in occupational settings. Cosmetic irritant contact dermatitis occurs when harsh cosmetic ingredients damage the skin barrier. Some cases may be labeled as irritant contact dermatitis related to prolonged exposure or friction.

When documentation lacks specificity, unspecified contact dermatitis due to unknown agents may be used, though providers are encouraged to identify the underlying cause whenever possible.

Atopic dermatitis is a chronic, relapsing inflammatory skin condition that typically starts in childhood but may persist or arise in adulthood. It is strongly associated with other atopic conditions like asthma and allergic rhinitis. It primarily affects the epidermis but may extend into the subcutaneous tissue during severe flares.

Accurate diagnosis and documentation of the type and cause of dermatitis not only support better patient care but also ensure correct ICD-10-CM code selection and billing compliance.

Synonyms include

• Dermatitis, NOS
• Eczema
• Skin inflammation
• Dermatosis
• Skin rash