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ICD-10 Guide
ICD-10 CodesR50.84

R50.84

Febrile nonhemolytic transfusion reaction

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R50.84 is a billable code used to indicate a diagnosis of febrile nonhemolytic transfusion reaction.

Key Diagnostic Point:

Febrile nonhemolytic transfusion reaction (FNHTR) is a common complication of blood transfusions characterized by the onset of fever, chills, and malaise typically occurring within a few hours after the transfusion begins. This reaction is primarily due to the recipient's immune response to donor white blood cells, cytokines, or other components in the transfused blood product. Symptoms may include a rise in temperature of 1°C or more, rigors, and sometimes headache or myalgia. Laboratory findings may show no significant abnormalities, although leukocyte antibodies may be detected. FNHTR is generally self-limiting and resolves with supportive care, including antipyretics. It is essential to differentiate FNHTR from hemolytic transfusion reactions, which are more severe and can lead to serious complications. Proper identification and documentation of FNHTR are crucial for patient safety and quality of care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from other transfusion reactions
  • Need for accurate symptom documentation
  • Potential overlap with other febrile conditions
  • Variability in clinical presentation

Audit Risk Factors

  • Inadequate documentation of symptoms and timing
  • Misclassification as a hemolytic reaction
  • Failure to document pre-existing conditions that may contribute to fever
  • Lack of follow-up documentation post-reaction

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed documentation of patient symptoms, vital signs, and any interventions taken post-transfusion.

Common Clinical Scenarios

Patients receiving multiple transfusions for chronic anemia or during surgical procedures.

Billing Considerations

Consideration of underlying conditions that may predispose patients to febrile reactions.

Emergency Medicine

Documentation Requirements

Acute care documentation must include time of transfusion, onset of symptoms, and immediate interventions.

Common Clinical Scenarios

Patients presenting with fever shortly after blood transfusion in the emergency department.

Billing Considerations

Rapid assessment and documentation are critical to differentiate from other acute febrile illnesses.

Coding Guidelines

Inclusion Criteria

Use R50.84 When
  • Coders should ensure that the diagnosis of FNHTR is supported by clinical documentation indicating the timing of symptoms in relation to the transfusion and that no other causes of fever are present

Exclusion Criteria

Do NOT use R50.84 When
No specific exclusions found.

Related CPT Codes

36430CPT Code

Transfusion of blood products

Clinical Scenario

Used when documenting the transfusion procedure that may lead to FNHTR.

Documentation Requirements

Document the type of blood product, volume, and patient response.

Specialty Considerations

Ensure that the transfusion is documented in the context of the patient's overall treatment plan.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of transfusion reactions, improving the ability to track and manage these complications effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of transfusion reactions, improving the ability to track and manage these complications effectively.

Reimbursement & Billing Impact

reimbursement and quality reporting.

Resources

Clinical References

  • •
    Transfusion Reaction Management Guidelines

Coding & Billing References

  • •
    Transfusion Reaction Management Guidelines

Frequently Asked Questions

What are the common symptoms of FNHTR?

Common symptoms include fever, chills, malaise, and sometimes headache or myalgia, typically occurring within a few hours of transfusion.

How can FNHTR be differentiated from hemolytic reactions?

FNHTR is characterized by a mild fever and chills without evidence of hemolysis, while hemolytic reactions are more severe and may present with hemoglobinuria, jaundice, and significant changes in vital signs.