ICD-10-CM Diagnosis Code D04.4 - Carcinoma in situ of skin of scalp and neck (original) (raw)

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Carcinoma in situ of skin of scalp and neck

ICD-10-CM Code:

D04.4

ICD-10 Code for:

Carcinoma in situ of skin of scalp and neck

Is Billable?

Yes - Valid for Submission

Chronic Condition Indicator: [1]

Not chronic

Code Navigator:

D04.4 is a billable diagnosis code used to specify a medical diagnosis of carcinoma in situ of skin of scalp and neck. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic head NEC ; Neoplasm, neoplastic scalp ; Neoplasm, neoplastic skin NOS cervical region [See Also: Neoplasm, skin, neck] ; Neoplasm, neoplastic skin NOS head NEC [See Also: Neoplasm, skin, scalp] ; Neoplasm, neoplastic skin NOS neck ; Neoplasm, neoplastic skin NOS scalp ; Neoplasm, neoplastic skin NOS supraclavicular region [See Also: Neoplasm, skin, neck] ; etc

  1. Code Information
  2. Approximate Synonyms
  3. Clinical Classification
  4. Tabular List of Diseases and Injuries
  5. Diagnostic Related Groups Mapping
  6. Convert to ICD-9 Code
  7. Table of Neoplasms
  8. Patient Education
  9. Other Codes Used Similar Conditions
  10. 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: NEO028

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.

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: 232.4

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.

This code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Filter table of neoplasms:

Neoplasm, neoplastic Malignant Primary Malignant Secondary CaInSitu Benign Uncertain Behavior Unspecified Behavior
»Neoplasm, neoplastic »head NEC C76.0 C79.89 D04.4 D36.7 D48.7 D49.89
»Neoplasm, neoplastic »scalp C44.40 C79.2 D04.4 D23.4 D48.5 D49.2
»Neoplasm, neoplastic »skin NOS »cervical region [See Also: Neoplasm, skin, neck] C44.40 C79.2 D04.4 D23.4 D48.5 D49.2
»Neoplasm, neoplastic »skin NOS »head NEC [See Also: Neoplasm, skin, scalp] C44.40 C79.2 D04.4 D23.4 D48.5 D49.2
»Neoplasm, neoplastic »skin NOS »neck C44.40 C79.2 D04.4 D23.4 D48.5 D49.2
»Neoplasm, neoplastic »skin NOS »scalp C44.40 C79.2 D04.4 D23.4 D48.5 D49.2
»Neoplasm, neoplastic »skin NOS »supraclavicular region [See Also: Neoplasm, skin, neck] C44.40 C79.2 D04.4 D23.4 D48.5 D49.2

Skin Cancer

Skin cancer is the most common form of cancer in the United States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, neck, hands, and arms. Another type of skin cancer, melanoma, is more dangerous but less common.

Anyone can get skin cancer, but it is more common in people who :

You should have your doctor check any suspicious skin markings and any changes in the way your skin looks. Treatment is more likely to work well when cancer is found early. If not treated, some types of skin cancer cells can spread to other tissues and organs. Treatments include surgery, radiation therapy, chemotherapy, photodynamic therapy (PDT), and biologic therapy. PDT uses a drug and a type of laser light to kill cancer cells. Biologic therapy boosts your body's own ability to fight cancer.

NIH: National Cancer Institute

[Learn More in MedlinePlus]