R89.7 — Abnormal histological findings in specimens from other organs, systems and tissues
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.
Risk adjustment
R89.7 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
R89.7 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A55717Billing and Coding: Lab: Flow Cytometry
- A56464Billing and Coding: Flow Cytometry
- A57689Billing and Coding: Lab: Flow Cytometry
How R89.7 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R89.7.
- 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
Related codes at this level
Codes that share R89. If R89.7 is not quite right, the correct code is usually one of these.
- R89.0Abnormal level of enzymes in specimens from other organs, systems and tissues
- R89.1Abnormal level of hormones in specimens from other organs, systems and tissues
- R89.2Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues
- R89.3Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues
- R89.4Abnormal immunological findings in specimens from other organs, systems and tissues
- R89.5Abnormal microbiological findings in specimens from other organs, systems and tissues
- R89.6Abnormal cytological findings in specimens from other organs, systems and tissues
- R89.8Other abnormal findings in specimens from other organs, systems and tissues
- R89.9Unspecified abnormal finding in specimens from other organs, systems and tissues
Questions about R89.7
- Is R89.7 a billable ICD-10-CM code?
- Yes. R89.7 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R89.7 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis (R83-R89).