Quick Quiz:
Test Your Diagnosis Coding Savvy
Published on Fri May 27, 2005
Use these clinical examples to sharpen your skills
You're faced with an outpatient pathology report that provides both clinical and pathology diagnostic information - how do you choose the correct ICD-9 code? Try your hand at coding the following scenarios, then compare your answers to our experts' advice. Example 1:
Clinical History: Dyspnea, rule out pneumonia.
Specimen source: Pleural fluid.
Final diagnosis: Pathologist review of cytospin slide shows many tight clusters of large cells with pleomorphic nuclei, high N/C ratio consistent with metastatic carcinoma of pleura.
Correct codes: The pathology report describes and names metastatic carcinoma of pleura as the diagnosis: 197.2 (Secondary malignant neoplasm of pleura). For a secondary malignancy, you must always code the primary malignancy too, which this pathology report does not specify. Use 199.1 (Malignant neoplasm without specification of site; other) for the primary malignancy from an unknown site. Example 2:
Clinical History: Asymptomatic screening Pap smear, Medicare patient.
Specimen source: Cervical Pap smear.
Final diagnosis: Initial screening indicates abnormal findings. Pathologist review indicates atypical squamous cells of undetermined significance.
Correct codes: V76.2 - Special screening for malignant neoplasms; cervix. Sequence as the second diagnosis code, 795.01 - Pap smear of cervix with atypical squamous cells of undetermined significance (ASC-US). Example 3:
Clinical history: Lung nodules, colon cancer treated with radiation.
Specimen source: Lung nodule, fine needle aspiration.
Diagnosis: Lung nodule FNA: positive for malignant cells. Adenocarcinoma, consistent with metastatic colorectal adenocarcinoma.
Correct codes: Code this metastatic lung neoplasm as 197.0 (Secondary malignant neoplasm; lung). Next, code the primary colon neoplasm as 153.9 (Malignant neoplasm of colon, unspecified).
- ICD-9 coding for the scenarios was prepared with the assistance of Laurie Castillo, CPC, CPC-H, CCS-P, owner of Castillo Consulting in Manassas, Va.; and Pamela Younes, MHS, HTL (ASCP), CPC, assistant professor at Baylor College of Medicine in Houston.