ICD-10-CM 2027
ICD-10 code for FNHTR
From the official ICD-10-CM alphabetic index entry “FNHTR (febrile nonhemolytic transfusion reaction)”. Page updated September 29, 2026.
About coding FNHTR
The ICD-10-CM code for FNHTR is R50.84 (Febrile nonhemolytic transfusion reaction).
Within R50.8 (other specified fever), R50.84 is specifically for febrile nonhemolytic transfusion reaction. Related codes cover fever presenting with conditions classified elsewhere (R50.81), postprocedural fever (R50.82) and Postvaccination fever (R50.83).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 864 (Fever and Inflammatory Conditions, relative weight 0.8551), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about FNHTR ICD-10 codes
What is the ICD-10 code for FNHTR?
- R50.84 — Febrile nonhemolytic transfusion reaction.
Is R50.84 billable?
- Yes. R50.84 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R50.84 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R50.84 as a principal diagnosis.
Is R50.84 a CC or MCC?
- No. R50.84 is neither a CC nor an MCC under MS-DRG v44.0.