According to the AHIMA CDIP Exam Preparation Guide, a query is a communication tool or process used to clarify documentation in the health record for documentation integrity and accurate code assignment1. A query should be clear, concise, and consistent, and should include relevant clinical indicators that support the query1. A query should also provide multiple choice answer options that are supported by clinical indicators and include a non-leading query statement2. In this case, the patient has a large right lung pleural effusion related to lung cancer stage II, which is documented multiple times. However, the documentation does not specify whether the pleural effusion is malignant or not. A malignant pleural effusion is a condition where cancer cells spread to the pleural space and cause fluid accumulation3. A malignant pleural effusion is a major complication or comorbidity (MCC) that affects the severity of illness (SOI) and risk of mortality (ROM) of the patient, as well as the reimbursement and quality scores of the hospital4. Therefore, a post discharge query opportunity should be sent to the physician to clarify whether the pleural effusion is malignant or not, based on the clinical indicators such as chest x-ray, thoracentesis, and fluid analysis. The query should provide answer options such as malignant pleural effusion, non-malignant pleural effusion, unable to determine, or other. The other options are not correct because they either do not affect the SOI/ROM of the patient (A and C), or they do not address the specificity of the diagnosis (D). References:

CDIP Exam Preparation Guide - AHIMA

Guidelines for Achieving a Compliant Query Practice (2019 Update) - AHIMA

Malignant Pleural Effusion: Symptoms, Causes, Diagnosis & Treatment

Q&A: Coding for malignant pleural effusions | ACDIS