AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2022 Issue 3; Ask the Editor
Malignant Pleural Effusion
A patient was admitted with recurrent malignant pleural effusion, and thoracentesis with placement of a PleurX™ catheter was performed. Pleural fluid cytology was positive for cancer cells. The patient has a past history of left breast cancer and at that time underwent a lumpectomy. More recently, she was diagnosed with invasive ductal carcinoma of the left breast ER/PR positive, HER2 negative, and had a bilateral mastectomy. The patient also has known metastases to the cervical lymph nodes, liver and bone, and is on adjuvant Tamoxifen therapy. Would it be appropriate to assign code J91.0, Malignant pleural effusion, as the principal diagnosis? The instructional note at code J91.0 directs “Code first the underlying neoplasm.” ...
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Article Overview
This article addresses a coding question related to malignant pleural effusion in a patient with a history of breast cancer and metastatic disease. It is relevant to inpatient coders, coding educators, and revenue cycle staff who need to understand how the article frames principal diagnosis selection and the role of underlying neoplasm coding guidance. The discussion is limited to the general scenario, the diagnosis context, and the coding guidance referenced in the article.
Why This Topic Matters
Accurate diagnosis sequencing affects inpatient reporting and how cancer-related encounters are represented in coded data. This article helps readers understand the coding issue raised by a pleural effusion admission when malignancy is part of the clinical picture.
What You Will Learn
- How the article frames a malignant pleural effusion admission in the context of cancer
- Why the underlying neoplasm is part of the coding discussion
- What principal diagnosis question the article is addressing
- How the article presents the relevance of metastatic disease to the coding scenario
Who Should Read This
- Inpatient medical coders
- Coding educators
- Clinical documentation improvement specialists
- Revenue cycle professionals
Codes Discussed
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