2024 ICD-10-CM Diagnosis Code C44.90

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Adverse effect from PUVA photochemotherapy
• Arsenic-induced skin malignancy
• Carcinoma of bone, connective tissue, skin and breast
• Local recurrence of malignant tumor of skin
• Malignant epithelial neoplasm of skin
• Malignant neoplasm of bone, connective tissue, skin and breast
• Malignant neoplasm of bone, connective tissue, skin and breast
• Malignant neoplasm of nail apparatus
• Malignant neoplasm of skin
• Malignant skin tumor with eccrine differentiation
• Malignant tumor of dermis
• Malignant tumor of epidermal appendage
• Malignant vascular tumor of skin
• Muir-Torré syndrome
• Neoplastic complication of procedure
• Occupational cancer of skin
• Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome
• Primary malignant neoplasm of adnexa of skin
• Primary malignant neoplasm of sebaceous gland
• Primary malignant neoplasm of skin
• Primary malignant neoplasm of skin due to and following radiotherapy caused by ionizing radiation
• Primary malignant neoplasm of sweat gland
• PUVA therapy-associated skin malignancy
• Radiation-induced skin malignancy
• Scarring alopecia of scalp due to malignant neoplasm of skin
• Skin disease due to arsenic
• Toxicoderma
• Undifferentiated adnexal carcinoma of skin

C44.90 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG	MS-DRG Title	MCD	Relative Weight
606	MINOR SKIN DISORDERS WITH MCC	09	1.5858
607	MINOR SKIN DISORDERS WITHOUT MCC	09	0.8935

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert C44.90 to ICD-9-CM

• ICD-9-CM Code: 173.90 - Malig neo skin site NOS

Table of Neoplasms

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   »connective tissue NEC     »skin (dermis) NEC [See Also: Neoplasm, skin, by site]	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2
»Neoplasm, neoplastic   »nail [See Also: Neoplasm, skin, limb]	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2
»Neoplasm, neoplastic   »scar NEC [See Also: Neoplasm, skin, by site]	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2
»Neoplasm, neoplastic   »skin NOS	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2
»Neoplasm, neoplastic   »skin NOS     »limb NEC	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2
»Neoplasm, neoplastic   »sudoriferous, sudoriparous gland, site unspecified	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2
»Neoplasm, neoplastic   »sweat gland (apocrine) (eccrine), site unspecified	C44.90	C79.2	D04.9	D23.9	D48.5	D49.2

Patient Education

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 :

• Spend a lot of time in the sun or have been sunburned
• Have light-colored skin, hair and eyes
• Have a family member with skin cancer
• Are over age 50

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]

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.