DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

R83 Abnormal findings in cerebrospinal fluid

  • Header · not billable

R83 is not billable. The category heads 9 billable codes in FY2027: the 9 codes directly below it.

Index → code

  • Abnormal, abnormality, abnormalitiescerebrospinal fluid → R83.9
  • Positiveculture (nonspecific)cerebrospinal fluid → R83.5
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidcytology → R83.6

Where it sits

  1. Chapter 18 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
  2. R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis (R83-R89)
  3. R83 Abnormal findings in cerebrospinal fluid
Billable codes
9
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
12

Codes in R83

  1. R83.0
    Abnormal level of enzymes in cerebrospinal fluid
    Billable
  2. R83.1
    Abnormal level of hormones in cerebrospinal fluid
    Billable
  3. R83.2
    Abnormal level of other drugs, medicaments and biological substances in cerebrospinal fluid
    Billable
  4. R83.3
    Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid
    Billable
  5. R83.4
    Abnormal immunological findings in cerebrospinal fluid
    Billable
  6. R83.5
    Abnormal microbiological findings in cerebrospinal fluid
    Billable
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Positive culture findings in cerebrospinal fluid

    Excludes1

    • colonization status (Z22.-) Z22
  7. R83.6
    Abnormal cytological findings in cerebrospinal fluid
    Billable
  8. R83.8
    Other abnormal findings in cerebrospinal fluid
    Billable
    Inclusion terms 1

    Inclusion terms

    • Abnormal chromosomal findings in cerebrospinal fluid
  9. R83.9
    Unspecified abnormal finding in cerebrospinal fluid
    Billable

Sources of each column.

Instructions

Notes that also apply

Block R83-R89 instructions (Excludes1 2, Excludes2 3): printed on the block page.

Chapter 18 instructions (Notes 9, Excludes2 4): printed on the chapter 18 page.

Index entries

  • Abnormal, abnormality, abnormalitiescerebrospinal fluid → R83.9
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidenzyme level → R83.0
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidhormones → R83.1
  • Abnormal, abnormality, abnormalitiescerebrospinal fluiddrug level → R83.2
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidnonmedicinal level → R83.3
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidimmunology → R83.4
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidmicrobiology → R83.5
  • Positiveculture (nonspecific)cerebrospinal fluid → R83.5
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidcytology → R83.6
  • Abnormal, abnormality, abnormalitiesPapanicolaou (smear)cerebrospinal fluid → R83.6
  • Abnormal, abnormality, abnormalitiescerebrospinal fluidspecified type NEC → R83.8
  • Abnormal, abnormality, abnormalitieschromosome, chromosomalanalysis resultcerebrospinal fluid → R83.8

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy