Abnormal cytolog findings in specimens from resp org/thrx

This code signifies the presence of atypical or abnormal cells identified during microscopic examination of samples obtained from the respiratory system or thoracic cavity. These findings suggest a deviation from normal cellular morphology but are not yet definitively diagnostic of a specific disease process, such as malignancy. It indicates the need for further investigation or monitoring.

Apply this code when pathology reports indicate abnormal or atypical cytological findings from respiratory specimens (e.g., sputum, bronchial washings, pleural fluid) or biopsies within the thorax, without a definitive diagnosis of malignancy or other specific disease. Documentation must clearly state "abnormal," "atypical," or "indeterminate" cytological results.

• Do not use this code if a definitive diagnosis, such as carcinoma in situ or a specific benign lesion, is established.
• Always sequence this code as a primary diagnosis when the abnormal finding is the reason for the encounter, or as a secondary diagnosis when further workup is planned.
• Review the pathology report carefully to ensure the findings are truly "abnormal" or "atypical" and not a definitive diagnosis.