R83.9
ICD-10-CMThis code signifies an abnormal laboratory result from a cerebrospinal fluid (CSF) analysis where the specific nature of the abnormality is not documented. It indicates that a deviation from normal CSF parameters was identified, but further detail regarding the finding (e.g., elevated protein, pleocytosis, abnormal glucose) is absent.
Use this code when the medical record indicates an abnormal CSF finding, but the provider's documentation does not specify the particular abnormality. This typically occurs when a CSF analysis was performed, and the report notes an "abnormal" result without further elaboration, or when the clinician simply states "abnormal CSF" in their notes.
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