Do you code primary or secondary cancer first?


How do you code metastatic cancer?

If the site of the primary cancer is not documented, the coder will assign a code for the metastasis first, followed by C80. 1 malignant (primary) neoplasm, unspecified. For example, if the patient was being treated for metastatic bone cancer, but the primary malignancy site is not documented, assign C79. 51, C80.

When a patient is admitted for chemotherapy for cancer what code is reported as the first-listed diagnosis?

Chemotherapy, Immunotherapy, and Radiation Therapy

11, Encounter for antineoplastic chemotherapy; or Z51. 12, encounter of antineoplastic immunotherapy as the first-listed or principal diagnosis.

What table do I use to code cancers?

Within the Alphabetic Index of ICD-9-CM is a Neoplasm table that assists coders in assigning diagnosis codes (Vols. 1-2). The table is structured based off the specific location of the neoplasm as well as the type of neoplasm.

How do you code secondary malignant neoplasms?


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Any mention of extension, invasion, or metastasis to another site is coded as a secondary malignant neoplasm to that site. The secondary site may be the principal or first-listed with the Z85 code used as a secondary code.

What is the ICD 10 code for metastatic cancer?

Secondary malignant neoplasm of unspecified site

The 2022 edition of ICD-10-CM C79. 9 became effective on October 1, 2021.

How would you code a patient’s cancer that has already been excised and is no longer being treated?

When cancer has been excised or eradicated from its site and there is no further treatment directed to the site and there is no evidence of malignancy, a code from category Z85, personal history of malignant neoplasm, should be assigned.

What is considered active cancer treatment?

Treatment given to cure the cancer, such as chemotherapy or radiation therapy. This does not include long-term treatment such as hormone medication, which may be taken for several years to maintain remission.

How do you code cancer in remission?

In-active neoplasm or cancer is coded when a patient is no longer receiving treatment for cancer and the cancer is in remission by using the V “history of” code (“Z” code for ICD-10).

When do you code Z51 11?

Encounter for antineoplastic chemotherapy

Z51. 11 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM Z51. 11 became effective on October 1, 2021.

When should I use code Z85?

When a patient’s cancer is successfully treated and there is no evidence of the disease and the patient is no longer receiving treatment, use Z85, “Personal history of malignant neoplasm.” Update the problem list and use this history code for surveillance visits and annual exams.

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What is an example of neoplasia?

Examples: Adenoma (benign neoplasm of glandular epithelium), fibroadenoma (benign neoplasm of the breast), and leiomyoma (benign neoplasm of smooth muscle).

Are neoplasms always malignant?

Neoplasms may be benign (not cancer) or malignant (cancer). Benign neoplasms may grow large but do not spread into, or invade, nearby tissues or other parts of the body. Malignant neoplasms can spread into, or invade, nearby tissues.

What is neoplasm disease?

Neoplastic diseases are conditions that cause tumor growth — both benign and malignant. Benign tumors are noncancerous growths. They usually grow slowly and can’t spread to other tissues. Malignant tumors are cancerous and can grow slowly or quickly.

What is primary malignant neoplasm?

Definition. A malignant tumor at the original site of growth. [ from NCI]