R83.1

Abnormal level of enzymes in cerebrospinal fluid

Abnormal level of other drugs, medicaments and biological substances in cerebrospinal fluid

Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid

Abnormal immunological findings in cerebrospinal fluid

Abnormal microbiological findings in cerebrospinal fluid

Abnormal cytological findings in cerebrospinal fluid

Other abnormal findings in cerebrospinal fluid

Unspecified abnormal finding in cerebrospinal fluid