R84.7 Abnormal histological findings in specimens from respiratory organs and thorax

Billable ICD-10-CM code, FY2026.

Applies from R84 Abnormal findings in specimens from respiratory organs and thorax

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 (never code together)

• blood-stained sputum (R04.2)

MS-DRG index

Defines the logic of DRG(s) 947-948 in MDC 23.

Approximate ICD-9-CM (GEMs)

• 792.9 Other nonspecific abnormal findings in body substances (approximate)

Diagnosis Index entries for R84.7

• Abnormal, abnormality, abnormalities › specimen › respiratory organs (bronchial washings) (nasal secretions) (pleural fluid) (sputum) › histology

Nearby codes

• R84.2 Abnormal level of other drugs, medicaments and biological substances in specimens from respiratory organs and thorax
• R84.3 Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax
• R84.4 Abnormal immunological findings in specimens from respiratory organs and thorax
• R84.5 Abnormal microbiological findings in specimens from respiratory organs and thorax
• R84.6 Abnormal cytological findings in specimens from respiratory organs and thorax
• R84.7 Abnormal histological findings in specimens from respiratory organs and thorax (this code)
• R84.8 Other abnormal findings in specimens from respiratory organs and thorax
• R84.9 Unspecified abnormal finding in specimens from respiratory organs and thorax