D89.813 — Graft-versus-host disease, unspecified
Is D89.813 billable?
Yes, but D89.813 is an unspecified code. D89.813 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, D89.813 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting D89.813 — the more specific alternatives are listed below.
D89.813 at a glance
| Code | D89.813 |
|---|---|
| Description | Graft-versus-host disease, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to D89.813?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name D89.813 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does D89.813 group to?
D89.813 sits in MDC 16 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 808Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with MCCmedical
- 809Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with CCmedical
- 810Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders without CC/MCCmedical
As a secondary diagnosis, D89.813 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is D89.813 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D89.813. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Graft-versus-host disease
- Disease, diseased › graft-versus-host
- Disease, diseased › host-versus-graft
Excludes1 — never code together — inherited from D80-D89
The conditions below can never be reported together with D89.813 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from D89
The conditions below can never be reported together with D89.813 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first — inherited from D89.81
The underlying condition below must be sequenced before D89.813. D89.813 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from D89.81
Report an additional code alongside D89.813 to fully describe the condition. D89.813 is sequenced first.
Excludes2 — not included here — inherited from Chapter 3
The conditions below are not part of D89.813, but a patient may have both at the same time. When documentation supports it, D89.813 and the excluded code may both be reported.
- autoimmune disease (systemic) NOS (M35.9)
- certain conditions originating in the perinatal period (P00-P96)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- human immunodeficiency virus [HIV] disease (B20)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from D80-D89
The conditions below are not part of D89.813, but a patient may have both at the same time. When documentation supports it, D89.813 and the excluded code may both be reported.
- human immunodeficiency virus [HIV] disease (B20)
Excludes2 — not included here — inherited from D89
The conditions below are not part of D89.813, but a patient may have both at the same time. When documentation supports it, D89.813 and the excluded code may both be reported.
- transplant failure and rejection (T86.-)
How long has D89.813 existed?
D89.813 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.