D89.812 — Acute on chronic graft-versus-host disease
D89.812 is a billable, specific ICD-10-CM code for acute on chronic graft-versus-host disease. It is valid for submission on a claim.
Risk adjustment
D89.812 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 454 Stem Cell, Including Bone Marrow, Transplant Status/Complications1.068 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
D89.812 is named in 28 Medicare coverage policies — 28 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52423Billing and Coding: Infliximab and biosimilars
- A55717Billing and Coding: Lab: Flow Cytometry
- A56464Billing and Coding: Flow Cytometry
- A56638Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs)
How D89.812 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 D89.812.
- Graft-versus-host disease›acute on chronic
- Disease, diseased›graft-versus-host›acute on chronic
- Disease, diseased›host-versus-graft›acute on chronic
Related codes at this level
Codes that share D89.81. If D89.812 is not quite right, the correct code is usually one of these.
Questions about D89.812
- Is D89.812 a billable ICD-10-CM code?
- Yes. D89.812 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D89.812 sit in the tabular list?
- Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), in the block Certain disorders involving the immune mechanism (D80-D89).