MCMedicalCodingSoftware
R89.7

R89.7: Abnormal histological findings in specimens from other organs, systems and tissues

Billable / specific codeICD-10-CM

R89.7 is a billable, specific ICD-10-CM code for abnormal histological findings in specimens from other organs, systems and tissues. It is valid for submission on a claim.

Check R89.7 with the rest of the claim: free scrubber

Other codes that can never be billed with R89.7

Their own Excludes1 notes name this code, so the conflict is not listed above.

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

R89.7 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A55717Billing and Coding: Lab: Flow Cytometry
  • A56464Billing and Coding: Flow Cytometry
  • A57689Billing and Coding: Lab: Flow Cytometry

Alphabetic index entries that lead here

  • Mallory's bodies
  • Abnormal, abnormality, abnormalities›histology NEC
  • Abnormal, abnormality, abnormalities›myoglobin(Aberdeen) (Annapolis)
  • Infiltrate, infiltration›calcareous NEC
  • Infiltrate, infiltration›calcium salt
  • Abnormal, abnormality, abnormalities›specimen›specified organ, system and tissue NOS›histology

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under R89

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.