R83.5 Abnormal microbiological findings in cerebrospinal fluid

Billable ICD-10-CM code, FY2026.

Applicable to

• Positive culture findings in cerebrospinal fluid

Excludes1 (never code together)

• colonization status (Z22.-)

MS-DRG index

Defines the logic of DRG(s) 091-093 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 792.0 Nonspecific abnormal findings in cerebrospinal fluid (approximate)

Diagnosis Index entries for R83.5

• Abnormal, abnormality, abnormalities › cerebrospinal fluid › microbiology
• Positive › culture (nonspecific) › cerebrospinal fluid

Nearby codes

• R83.0 Abnormal level of enzymes in cerebrospinal fluid
• R83.1 Abnormal level of hormones in cerebrospinal fluid
• R83.2 Abnormal level of other drugs, medicaments and biological substances in cerebrospinal fluid
• R83.3 Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid
• R83.4 Abnormal immunological findings in cerebrospinal fluid
• R83.5 Abnormal microbiological findings in cerebrospinal fluid (this code)
• R83.6 Abnormal cytological findings in cerebrospinal fluid
• R83.8 Other abnormal findings in cerebrospinal fluid
• R83.9 Unspecified abnormal finding in cerebrospinal fluid