General Coding Guidelines Chapter 2 Neoplasms – Flashcards

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Chapter 2 of the ICD-10-CM contains the codes for most benign and all malignant neoplasms. Certain benign neoplasms, such as prostatic adenomas, may be found in the specific body system chapters. To properly code a neoplasm it is necessary to determine from the record if the neoplasm is benign, in-situ, malignant, or of uncertain histologic behavior. If malignant, any secondary (metastatic) sites should also be determined. General guidelines The neoplasm table in the Alphabetic Index should be referenced first. However, if the histological term is documented, that term should be referenced first, rather than going immediately to the Neoplasm Table, in order to determine which column in the Neoplasm Table is appropriate.Factors influencing health status and contact with health services, Status, for information regarding Z15.0, codes for genetic susceptibility to cancer.
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2. Chapter 2: Neoplasms (C00-D49)
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If the treatment is directed at the malignancy, designate the malignancy as the principal diagnosis. The only exception to this guideline is if a patient admission/encounter is solely for the administration of chemotherapy, immunotherapy or radiation therapy, assign the appropriate Z51.-- code as the first-listed or principal diagnosis, and the diagnosis or problem for which the service is being performed as a secondary diagnosis.
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a. Treatment directed at the malignancy
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When a patient is admitted because of a primary neoplasm with metastasis and treatment is directed toward the secondary site only, the secondary neoplasm is designated as the principal diagnosis even though the primary malignancy is still present.
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b. Treatment of secondary site
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Coding and sequencing of complications associated with the malignancies or with the therapy thereof are subject to the following guidelines:
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c. Coding and sequencing of complications
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When admission/encounter is for management of an anemia associated with the malignancy, and the treatment is only for anemia, the appropriate code for the malignancy is sequenced as the principal or first-listed diagnosis followed by code D63.0, Anemia in neoplastic disease.
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C 1) Anemia associated with malignancy
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When the admission/encounter is for management of an anemia associated with an adverse effect of chemotherapy or immunotherapy and the only treatment is for the anemia, the appropriate adverse effect code should be sequenced first, followed by the appropriate codes for the anemia and neoplasm. When the admission/encounter is for management of an anemia associated with an adverse effect of radiotherapy, the anemia code should be sequenced first, followed by the appropriate neoplasm code and code Y84.2, Radiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure.
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C 2) Anemia associated with chemotherapy, immunotherapy and radiation therapy
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When the admission/encounter is for management of dehydration due to the malignancy and only the dehydration is being treated (intravenous rehydration), the dehydration is sequenced first, followed by the code(s) for the malignancy.
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c 3) Management of dehydration due to the malignancy
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When the admission/encounter is for treatment of a complication resulting from a surgical procedure, designate thecomplication as the principal or first-listed diagnosis if treatment is directed at resolving the complication.
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C 4) Treatment of a complication resulting from a surgical procedure
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When a primary malignancy has been previously excised or eradicated from its site and there is no further treatment directed to that site and there is no evidence of any existing primary malignancy, a code from category Z85, Personal history of malignant neoplasm, should be used to indicate the former site of the malignancy. 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 princi
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d. Primary malignancy previously excised
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1) Episode of care involves surgical removal of neoplasm When an episode of care involves the surgical removal of a neoplasm, primary or secondary site, followed by adjunct chemotherapy or radiation treatment during the same episode of care, the code for the neoplasm should be assigned as principal or first-listed diagnosis. 2) Patient admission/encounter solely for administration of chemotherapy, immunotherapy and radiation therapy If a patient admission/encounter is solely for the administration of chemotherapy, immunotherapy or radiation therapy assign code Z51.0, Encounter for antineoplastic radiation therapy, or Z51.11, Encounter for antineoplastic chemotherapy, or Z51.12, Encounter for antineoplastic immunotherapy as the first-listed or principal diagnosis. If a patient receives more than one of these therapies during the same admission more than one of these codes may be assigned, in any sequence. The malignancy for which the therapy is being administered should be assigned as a secondary diagnosis. 3) Patient admitted for radiation therapy, chemotherapy or immunotherapy and develops complications When a patient is admitted for the purpose of radiotherapy, immunotherapy or chemotherapy and develops complications such as uncontrolled nausea and vomiting or dehydration, the principal or first-listed diagnosis is Z51.0, Encounter forantineoplastic radiation therapy, or Z51.11, Encounter for antineoplastic chemotherapy, or Z51.12, Encounter for antineoplastic immunotherapy followed by any codes for the complications.
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e. Admissions/Encounters involving chemotherapy, immunotherapy and radiation therapy
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When the reason for admission/encounter is to determine the extent of the malignancy, or for a procedure such as paracentesis or thoracentesis, the primary malignancy or appropriate metastatic site is designated as the principal or first-listed diagnosis, even though chemotherapy or radiotherapy is administered.
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f. Admission/encounter to determine extent of malignancy
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g Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms Symptoms, signs, and ill-defined conditions listed in Chapter 18 characteristic of, or associated with, an existing primary or secondary site malignancy cannot be used to replace the malignancy as principal or first-listed diagnosis, regardless of the number of admissions or encounters for treatment and care of the neoplasm. See section I.C.21. Factors influencing health status and contact with health services, Encounter for prophylactic organ removal.
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Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms
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See Section I.C.6. for information on coding admission/encounter for pain control/management.
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h. Admission/encounter for pain control/management
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A patient may have more than one malignant tumor in the same organ. These tumors may represent different primaries or metastatic disease, depending on the site. Should the documentation be unclear, the provider should be queried as to the status of each tumor so that the correct codes can be assigned.
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i. Malignancy in two or more noncontiguous sites
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Code C80.0, Disseminated malignant neoplasm, unspecified, is for use only in those cases where the patient has advanced metastatic disease and no known primary or secondary sites are specified. It should not be used in place of assigning codes for the primary site and all known secondary sites.
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j. Disseminated malignant neoplasm, unspecified
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Code C80.1, Malignant (primary) neoplasm, unspecified, equates to Cancer, unspecified. This code should only be used when no determination can be made as to the primary site of a malignancy. This code should rarely be used in the inpatient setting
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Malignant neoplasm without specification of site
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