DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

R84 Abnormal findings in specimens from respiratory organs and thorax

  • Header · not billable

R84 is not billable. The category heads 10 billable codes in FY2027: the 10 codes directly below it.

Index → code

  • Positiveculture (nonspecific)nose → R84.5
  • Positiveculture (nonspecific)sputum → R84.5
  • Positiveculture (nonspecific)pleural fluid → R84.5

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. R84 Abnormal findings in specimens from respiratory organs and thorax
Billable codes
10
Subdivisions
10
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
26

Codes in R84

  1. R84.0
    Abnormal level of enzymes in specimens from respiratory organs and thorax
    Billable
  2. R84.1
    Abnormal level of hormones in specimens from respiratory organs and thorax
    Billable
  3. R84.2
    Abnormal level of other drugs, medicaments and biological substances in specimens from respiratory organs and thorax
    Billable
  4. R84.3
    Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax
    Billable
  5. R84.4
    Abnormal immunological findings in specimens from respiratory organs and thorax
    Billable
  6. R84.5
    Abnormal microbiological findings in specimens from respiratory organs and thorax
    Billable
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Positive culture findings in specimens from respiratory organs and thorax

    Excludes1

    • colonization status (Z22.-) Z22
  7. R84.6
    Abnormal cytological findings in specimens from respiratory organs and thorax
    Billable
  8. R84.7
    Abnormal histological findings in specimens from respiratory organs and thorax
    Billable
  9. R84.8
    Other abnormal findings in specimens from respiratory organs and thorax
    Billable
    Inclusion terms 1

    Inclusion terms

    • Abnormal chromosomal findings in specimens from respiratory organs and thorax
  10. R84.9
    Unspecified abnormal finding in specimens from respiratory organs and thorax
    Billable

Sources of each column.

Instructions

At R84

Includes

  • abnormal findings in bronchial washings
  • abnormal findings in nasal secretions
  • abnormal findings in pleural fluid
  • abnormal findings in sputum
  • abnormal findings in throat scrapings

Excludes1

  • blood-stained sputum (R04.2) R04.2

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

  • Positiveculture (nonspecific)bronchial washings → R84.5
  • Positiveculture (nonspecific)nasal secretions → R84.5
  • Positiveculture (nonspecific)nose → R84.5
  • Positiveculture (nonspecific)pleural fluid → R84.5
  • Positiveculture (nonspecific)sputum → R84.5
  • Positiveculture (nonspecific)throat scrapings → R84.5
  • Abnormal, abnormality, abnormalitiesPapanicolaou (smear)bronchial washings → R84.6
  • Abnormal, abnormality, abnormalitiesPapanicolaou (smear)nasal secretions → R84.6
  • Abnormal, abnormality, abnormalitiesPapanicolaou (smear)pleural fluid → R84.6
  • Abnormal, abnormality, abnormalitiesPapanicolaou (smear)sputum → R84.6
  • Abnormal, abnormality, abnormalitiesPapanicolaou (smear)throat scrapings → R84.6
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum) → R84.9
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)enzyme level → R84.0
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)hormones → R84.1
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)drug level → R84.2
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)nonmedicinal level → R84.3
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)immunology → R84.4
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)microbiology → R84.5
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)cytology → R84.6
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)histology → R84.7
  • Abnormal, abnormality, abnormalitieschromosome, chromosomalanalysis resultbronchial washings → R84.8
  • Abnormal, abnormality, abnormalitieschromosome, chromosomalanalysis resultnasal secretions → R84.8
  • Abnormal, abnormality, abnormalitieschromosome, chromosomalanalysis resultpleural fluid → R84.8
  • Abnormal, abnormality, abnormalitieschromosome, chromosomalanalysis resultsputum → R84.8
  • Abnormal, abnormality, abnormalitieschromosome, chromosomalanalysis resultthroat scrapings → R84.8
  • Abnormal, abnormality, abnormalitiesspecimenrespiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum)specified type NEC → R84.8

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

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