ICD-10 D89.812
Billable / Specific HCC v28: 47 CCAcute on chronic graft-versus-host disease
About ICD-10-CM D89.812
ICD-10-CM code D89.812 represents Acute on chronic graft-versus-host disease. This is a billable/specific code in the Blood and Blood-forming Organs chapter (block D89). The 2026 edition of ICD-10-CM D89.812 became effective on October 1, 2025.
Coding Tips for D89.812
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
D89.812 is a CMS-HCC v28 risk-adjustment code (category 47). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
D89.812 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Inpatient DRG Impact, CC
codes Acute on chronic graft-versus-host disease. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for D89.812
Local Coverage Determinations (LCDs) from CMS MACs that list D89.812 as a covered diagnosis.
Showing top 10 of 689 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing D89.812.
1 Aetna
5 Medicare
CPT Codes Commonly Billed with D89.812
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 87507 CMS LCD: Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs) CMS LCD
- 87505 CMS LCD: Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs) CMS LCD
- 87506 CMS LCD: Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs) CMS LCD
- J1745 CMS LCD: Billing and Coding: Infliximab and biosimilars CMS LCD
- Q5104 CMS LCD: Billing and Coding: Infliximab and biosimilars CMS LCD
- Q5121 CMS LCD: Billing and Coding: Infliximab and biosimilars CMS LCD
- Q5103 CMS LCD: Billing and Coding: Infliximab and biosimilars CMS LCD
- 87812 CMS LCD: Billing and Coding: Respiratory Pathogen Panel Testing CMS LCD
- 87428 CMS LCD: Billing and Coding: Respiratory Pathogen Panel Testing CMS LCD
- 87913 CMS LCD: Billing and Coding: Respiratory Pathogen Panel Testing CMS LCD
Convert D89.812 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| D89.812 | 27953 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To D89.812
Other codes in section D80-D89 (Certain disorders involving the immune mechanism).
ICD-10 D89.812, Billing FAQ
Is ICD-10 code D89.812 billable? +
Yes, D89.812 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Does D89.812 affect Medicare Advantage HCC risk adjustment? +
Yes. D89.812 maps to CMS-HCC v28 category 47. Capture this diagnosis annually for accurate Medicare Advantage risk score.
Is D89.812 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with D89.812? +
Procedures frequently paired with D89.812 include: 87507, 87505, 87506, J1745, Q5104.
What ICD-9 codes does D89.812 map to? +
Per CMS GEMs, D89.812 maps to ICD-9 codes: 27953. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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