ICD-10 Guide

A40

Billable

Streptococcal sepsis.

Chapter 1:Certain infectious and parasitic diseases

BILLABLE STATUSYes

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED09/05/2025

Code Description

ICD-10 A40 is a billable code used to indicate a diagnosis of streptococcal sepsis..

Key Diagnostic Point:

Streptococcal sepsis is a severe systemic infection caused by Streptococcus bacteria, which can lead to significant morbidity and mortality. This condition is characterized by the presence of bacteria in the bloodstream, resulting in a systemic inflammatory response syndrome (SIRS). Patients may present with fever, chills, tachycardia, hypotension, and altered mental status. Streptococcal sepsis can arise from various sources, including skin infections, pneumonia, and soft tissue infections. The rapid progression of this condition necessitates immediate medical intervention, often requiring intensive care unit (ICU) admission for close monitoring and aggressive treatment. Management typically involves the administration of broad-spectrum intravenous antibiotics, fluid resuscitation, and supportive care. Antimicrobial stewardship is crucial in this context to ensure the appropriate use of antibiotics, minimizing resistance and optimizing patient outcomes. Early recognition and treatment are vital to improving survival rates in patients with streptococcal sepsis.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

Differentiating between various types of sepsis (e.g., gram-positive vs. gram-negative)
Identifying the source of infection accurately
Understanding the nuances of SIRS criteria
Managing co-morbid conditions that may complicate coding

Audit Risk Factors

Inadequate documentation of the source of infection
Failure to document the severity of sepsis
Misclassification of the type of streptococcal infection
Lack of clear evidence for ICU admission criteria

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed history of infection, laboratory results, and treatment plans.

Common Clinical Scenarios

Patients presenting with severe infections requiring hospitalization.

Billing Considerations

Documentation must clearly outline the source of infection and response to treatment.

Critical Care

Documentation Requirements

Comprehensive ICU admission notes, including vital signs and treatment protocols.

Common Clinical Scenarios

Management of septic shock and multi-organ failure.

Billing Considerations

Accurate recording of interventions and patient responses is essential for coding.

Coding Guidelines

Inclusion Criteria

Use A40 When

According to ICD
10 guidelines, A40 should be used when there is clear documentation of streptococcal infection leading to sepsis
It is important to ensure that the diagnosis is supported by clinical findings and laboratory results

Exclusion Criteria

Do NOT use A40 When

Exclusion criteria include other specified infections that do not involve streptococcal organisms

Related CPT Codes

99291CPT Code

Critical care, evaluation and management of the critically ill patient

Clinical Scenario

Used when a patient with streptococcal sepsis is admitted to the ICU for critical care.

Documentation Requirements

Detailed documentation of the patient's condition, interventions, and response to treatment.

Specialty Considerations

Critical care specialists must ensure comprehensive notes to support billing.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of streptococcal infections, improving the accuracy of data collection and reimbursement. The granularity of ICD-10 codes helps in better tracking of infection rates and outcomes.

ICD-9 vs ICD-10

Reimbursement & Billing Impact

reimbursement. The granularity of ICD-10 codes helps in better tracking of infection rates and outcomes.

Resources

Clinical References

•
CDC Guidelines on Sepsis

Coding & Billing References

•
CDC Guidelines on Sepsis

Frequently Asked Questions

What are the common causes of streptococcal sepsis?

Common causes include skin infections, pneumonia, and invasive procedures that allow streptococci to enter the bloodstream.

How is streptococcal sepsis treated?

Treatment typically involves intravenous antibiotics, fluid resuscitation, and supportive care in an ICU setting.

ICD-10 A40 is a billable code used to indicate a diagnosis of streptococcal sepsis..