R89.4 Abnormal immunological findings in specimens from other organs, systems and tissues

Billable ICD-10-CM code, FY2026.

Applies from R89 Abnormal findings in specimens from other organs, systems and tissues

Includes

• abnormal findings in nipple discharge
• abnormal findings in synovial fluid
• abnormal findings in wound secretions

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)

Code annotations containing back-references to R89.4

Back-references to R89

• Type 1 Excludes: N64.52 Nipple discharge ("abnormal findings in nipple discharge (R89.-)")

Diagnosis Index entries for R89.4

• Abnormal, abnormality, abnormalities › immunological findings
• Abnormal, abnormality, abnormalities › specimen › specified organ, system and tissue NOS › immunology

Nearby codes

• R89 Abnormal findings in specimens from other organs, systems and tissues
• R89.0 Abnormal level of enzymes in specimens from other organs, systems and tissues
• R89.1 Abnormal level of hormones in specimens from other organs, systems and tissues
• R89.2 Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues
• R89.3 Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues
• R89.4 Abnormal immunological findings in specimens from other organs, systems and tissues (this code)
• R89.5 Abnormal microbiological findings in specimens from other organs, systems and tissues
• R89.6 Abnormal cytological findings in specimens from other organs, systems and tissues
• R89.7 Abnormal histological findings in specimens from other organs, systems and tissues
• R89.8 Other abnormal findings in specimens from other organs, systems and tissues
• R89.9 Unspecified abnormal finding in specimens from other organs, systems and tissues