ICD-10-CM Diagnosis Code L30.9 - Dermatitis, unspecified (original) (raw)

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Dermatitis, unspecified

ICD-10-CM Code:

L30.9

ICD-10 Code for:

Dermatitis, unspecified

Is Billable?

Yes - Valid for Submission

Chronic Condition Indicator: [1]

Not chronic

Code Navigator:

L30.9 is a billable diagnosis code used to specify a medical diagnosis of dermatitis, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

Unspecified diagnosis codes like L30.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

  1. Code Information
  2. Approximate Synonyms
  3. Clinical Classification
  4. Clinical Information
  5. Tabular List of Diseases and Injuries
  6. Index to Diseases and Injuries References
  8. Diagnostic Related Groups Mapping
  9. Convert to ICD-9 Code
  10. Patient Education
  11. Other Codes Used Similar Conditions
  12. Code History

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

CCSR Code: INJ031

Inpatient Default: N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.

CCSR Code: SKN007

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

a type of acneiform disorder in which secondary pyogenic infection in and around pilosebaceous structures ends in keloidal scarring. it manifests as persistent folliculitis of the back of the neck associated with occlusion of the follicular orifices. it is most often encountered in black or asian men.

scaly papule or warty growth, caused by five fungi, that spreads as a result of satellite lesions affecting the foot or leg. the extremity may become swollen and, at its distal portion, covered with various nodular, tumorous, verrucous lesions that resemble cauliflower. in rare instances, the disease may begin on the hand or wrist and involve the entire upper extremity. (arnold, odom, and james, andrew's diseases of the skin, 8th ed, p362)

any inflammation of the skin.

rare, chronic, papulo-vesicular disease characterized by an intensely pruritic eruption consisting of various combinations of symmetrical, erythematous, papular, vesicular, or bullous lesions. the disease is strongly associated with the presence of hla-b8 and hla-dr3 antigens. a variety of different autoantibodies has been detected in small numbers in patients with dermatitis herpetiformis.

a contact dermatitis due to allergic sensitization to various substances. these substances subsequently produce inflammatory reactions in the skin of those who have acquired hypersensitivity to them as a result of prior exposure.

a chronic inflammatory genetically determined disease of the skin marked by increased ability to form reagin (ige), with increased susceptibility to allergic rhinitis and asthma, and hereditary disposition to a lowered threshold for pruritus. it is manifested by lichenification, excoriation, and crusting, mainly on the flexural surfaces of the elbow and knee. in infants it is known as infantile eczema.

a type of acute or chronic skin reaction in which sensitivity is manifested by reactivity to materials or substances coming in contact with the skin. it may involve allergic or non-allergic mechanisms.

the widespread involvement of the skin by a scaly, erythematous dermatitis occurring either as a secondary or reactive process to an underlying cutaneous disorder (e.g., atopic dermatitis, psoriasis, etc.), or as a primary or idiopathic disease. it is often associated with the loss of hair and nails, hyperkeratosis of the palms and soles, and pruritus. (from dorland, 27th ed)

a non-allergic contact dermatitis caused by prolonged exposure to irritants and not explained by delayed hypersensitivity mechanisms.

a recurrent contact dermatitis caused by substances found in the work place.

a papular eruption of unknown etiology that progresses to residual papular erythema and scaling usually confined to the area of the mouth, and almost exclusively occurring in young women. it may also be localized or extend to involve the eyelids and adjacent glabella area of the forehead (periocular dermatitis). (dorland, 28th ed)

a delayed hypersensitivity involving the reaction between sunlight or other radiant energy source and a chemical substance to which the individual has been previously exposed and sensitized. it manifests as a papulovesicular, eczematous, or exudative dermatitis occurring chiefly on the light-exposed areas of the skin.

a nonimmunologic, chemically induced type of photosensitivity producing a sometimes vesiculating dermatitis. it results in hyperpigmentation and desquamation of the light-exposed areas of the skin.

a chronic inflammatory disease of the skin with unknown etiology. it is characterized by moderate erythema, dry, moist, or greasy (sebaceous gland) scaling and yellow crusted patches on various areas, especially the scalp, that exfoliate as dandruff. seborrheic dermatitis is common in children and adolescents with hiv infections.

an allergic contact dermatitis caused by exposure to plants of the genus toxicodendron (formerly rhus). these include poison ivy, poison oak, and poison sumac, all plants that contain the substance urushiol, a potent skin sensitizing agent. (from dorland, 27th ed)

highly contagious infectious dermatitis with lesions near the interdigital spaces usually in cattle. it causes discomfort and often severe lameness (lameness, animal). lesions can be either erosive or proliferative and wart-like with papillary growths and hypertrophied hairs. dichelobacter nodosus and treponema are the most commonly associated causative agents for this mixed bacterial infection disease.

adverse cutaneous reactions caused by ingestion, parenteral use, or local application of a drug. these may assume various morphologic patterns and produce various types of lesions.

an infectious dermatitis of sheep and goats, affecting primarily the muzzle and lips. it is caused by a poxvirus and may be transmitted to man.

a dermatitis characterized by a spongiotic tissue reaction pattern occurring as a reaction to many endogenous and exogenous agents.

an uncommon complication of intramuscular injection leading to variable degrees of necrosis of skin and underlying tissue.

abnormal responses to sunlight or artificial light due to extreme reactivity of light-absorbing molecules in tissues. it refers almost exclusively to skin photosensitivity, including sunburn, reactions due to repeated prolonged exposure in the absence of photosensitizing factors, and reactions requiring photosensitizing factors such as photosensitizing agents and certain diseases. with restricted reference to skin tissue, it does not include photosensitivity of the eye to light, as in photophobia or photosensitive epilepsy.

a cutaneous inflammatory reaction occurring as a result of exposure to ionizing radiation.

a dual specificity phosphatase subtype that plays a role in intracellular signal transduction by inactivating mitogen-activated protein kinases. it has specificity for extracellular signal-regulated map kinases.

a vaccinia virus vaccine used for immunization against smallpox. it is now recommended only for laboratory workers exposed to smallpox virus. certain countries continue to vaccinate those in the military service. rare complications most often associated with older generation smallpox vaccines include vaccinia, secondary bacterial infections, and encephalomyelitis. because monkeypox virus and smallpox virus are both orthopoxvirus and are closely related smallpox vaccines provide effective cross-protection against mpox, monkeypox (https://www.cdc.gov/poxvirus/monkeypox/clinicians/smallpox-vaccine.html).

the cutaneous and occasional systemic reactions associated with vaccination using smallpox (variola) vaccine.

the type species of orthopoxvirus, related to cowpox virus, but whose true origin is unknown. it has been used as a live vaccine against smallpox. it is also used as a vector for inserting foreign dna into animals. rabbitpox virus is a subspecies of vaccinia virus.

a recurrent eczematous reaction characterized by the development of vesicular eruptions on the palms and soles, particularly along the sides and between the digits. it is accompanied by pruritus, a burning sensation, and hyperhidrosis. the disease is self-limiting, lasting only a few weeks. (dorland, 27th ed)

a disseminated vesicular-pustular eruption caused by the herpes simplex virus (herpesvirus hominis), the vaccinia virus, or varicella zoster (herpesvirus 3, human). it is usually superimposed on a preexisting, inactive or active, atopic dermatitis (dermatitis, atopic).

any of a variety of eruptive skin disorders characterized by erythema, oozing, vesiculation, and scaling. etiology is varied.

a rare, x-linked immunodeficiency syndrome characterized by eczema; lymphopenia; and, recurrent pyogenic infection. it is seen exclusively in young boys. typically, immunoglobulin m levels are low and immunoglobulin a and immunoglobulin e levels are elevated. lymphoreticular malignancies are common.

forceful administration into a muscle of liquid medication, nutrient, or other fluid through a hollow needle piercing the muscle and any tissue covering it.

a question about whether an individual's pet smells like urine or has skin irritation.

the glucose monitoring satisfaction survey version: type 1 diabetes (gmss version type 1 diabetes) my current monitor: causes too many skin irritations or bruises.

a question about whether an individual's pet smells like urine or has skin irritation.

a mild inflammatory dermal tissue reaction; it can be caused by physical contact with an irritant or can be a local response to a systemic trigger.

References found for this diagnosis code in the External Cause of Injuries Index:

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-CM: 692.9

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

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.

Eczema is not contagious. The cause of eczema is unknown. It is likely caused by both genetic and environmental factors. Eczema may get better or worse over time, but it is often a long-lasting disease. People who have it may also develop hay fever and asthma.

The most common type of eczema is atopic dermatitis. It is most common in babies and children, but adults can have it too. As children who have atopic dermatitis grow older, this problem may get better or go away. But sometimes the skin may stay dry and get irritated easily.

Treatments may include medicines, skin creams, light therapy, and good skin care. You can prevent some types of eczema by avoiding:

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

[Learn More in MedlinePlus]

Rashes

A rash is an area of irritated or swollen skin. Many rashes are itchy, red, painful, and irritated. Some rashes can also lead to blisters or patches of raw skin. Rashes are a symptom of many different medical problems. Other causes include irritating substances and allergies. Certain genes can make people more likely to get rashes.

Contact dermatitis is a common type of rash. It causes redness, itching, and sometimes small bumps. You get the rash where you have touched an irritant, such as a chemical, or something you are allergic to, like poison ivy.

Some rashes develop right away. Others form over several days. Although most rashes clear up fairly quickly, others are long-lasting and need long-term treatment.

Because rashes can be caused by many different things, it's important to figure out what kind you have before you treat it. If it is a bad rash, if it does not go away, or if you have other symptoms, you should see your health care provider. Treatments may include moisturizers, lotions, baths, cortisone creams that relieve swelling, and antihistamines, which relieve itching.

[Learn More in MedlinePlus]

Atopic Dermatitis

Atopic dermatitis, often called eczema, is a chronic (long-lasting) disease that causes the skin to become inflamed and irritated, making it extremely itchy.
[Learn More in MedlinePlus]