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ICD-10 Coding for Systemic Inflammatory Response Syndrome(R65.10, R65.11, R65.20, R65.21)

Complete ICD-10-CM coding and documentation guide for Systemic Inflammatory Response Syndrome. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

SIRSsystemic response syndrome

Related ICD-10 Code Ranges

Complete code families applicable to Systemic Inflammatory Response Syndrome

R65.1-R65.2Primary Range

Systemic Inflammatory Response Syndrome (SIRS) and Severe Sepsis

This range includes codes for SIRS with and without organ dysfunction, and severe sepsis with and without shock.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
R65.10Systemic inflammatory response syndrome (SIRS) of non-infectious origin without acute organ dysfunctionUse when SIRS is diagnosed due to a non-infectious cause without organ dysfunction.
  • Temperature >38°C or <36°C
  • Heart rate >90 beats/min
  • Respiratory rate >20 breaths/min or PaCO2 <32 mmHg
  • + 1 more
R65.11Systemic inflammatory response syndrome (SIRS) of non-infectious origin with acute organ dysfunctionUse when SIRS is diagnosed due to a non-infectious cause with organ dysfunction.
  • SIRS criteria plus evidence of organ dysfunction such as acute renal failure, respiratory failure, etc.
R65.20Severe sepsis without septic shockUse when severe sepsis is diagnosed without shock.
  • Sepsis criteria plus evidence of organ dysfunction without shock.
R65.21Severe sepsis with septic shockUse when severe sepsis is diagnosed with shock.
  • Sepsis criteria plus evidence of organ dysfunction and shock.

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for SIRS

Essential facts and insights about Systemic Inflammatory Response Syndrome

The ICD-10 codes for SIRS include R65.10 for non-infectious origin without organ dysfunction and R65.11 with organ dysfunction.

Primary ICD-10-CM Codes for sirs

Systemic inflammatory response syndrome (SIRS) of non-infectious origin without acute organ dysfunction
Billable Code

Decision Criteria

clinical Criteria

  • Presence of SIRS criteria without organ dysfunction

Applicable To

  • SIRS due to non-infectious causes without organ failure

Excludes

  • SIRS due to infectious causes (sepsis)

Clinical Validation Requirements

  • Temperature >38°C or <36°C
  • Heart rate >90 beats/min
  • Respiratory rate >20 breaths/min or PaCO2 <32 mmHg
  • White blood cell count >12,000/mm³ or <4,000/mm³ or >10% immature (band) forms

Code-Specific Risks

  • Incorrectly coding as principal diagnosis when an underlying condition is present.

Coding Notes

  • Ensure the underlying condition is documented and coded first.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

SIRS of non-infectious origin with acute organ dysfunction

R65.11
Presence of acute organ dysfunction differentiates R65.11 from R65.10.

SIRS of non-infectious origin without acute organ dysfunction

R65.10
Absence of organ dysfunction differentiates R65.10 from R65.11.

Severe sepsis with septic shock

R65.21
Presence of shock differentiates R65.21 from R65.20.

Severe sepsis without septic shock

R65.20
Absence of shock differentiates R65.20 from R65.21.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Systemic Inflammatory Response Syndrome to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code R65.10.

Impact

Clinical: Inaccurate representation of patient severity., Regulatory: Non-compliance with coding guidelines., Financial: Potential loss of reimbursement.

Mitigation Strategy

Ensure thorough documentation of all clinical findings., Use templates to guide documentation.

Impact

Reimbursement: Incorrect sequencing can lead to denied claims., Compliance: Non-compliance with ICD-10-CM guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Always code the underlying condition first.

Impact

Reimbursement: Incorrect coding affects DRG assignment., Compliance: Potential audit issues., Data Quality: Misrepresentation of patient condition.

Mitigation Strategy

Ensure documentation specifies non-infectious vs. infectious causes.

Impact

Coding SIRS as principal diagnosis instead of underlying condition.

Mitigation Strategy

Educate coders on proper sequencing rules.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Systemic Inflammatory Response Syndrome, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Systemic Inflammatory Response Syndrome

Use these documentation templates to ensure complete and accurate documentation for Systemic Inflammatory Response Syndrome. These templates include all required elements for proper coding and billing.

Non-infectious SIRS due to pancreatitis

Specialty: Gastroenterology

Required Elements

  • Underlying condition
  • SIRS criteria
  • Vital signs
  • Lab results
  • Organ dysfunction status

Example Documentation

Patient with acute pancreatitis presents with SIRS: Temp 38.5°C, HR 105, WBC 13,200. No organ dysfunction.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has SIRS.
Good Documentation Example
SIRS secondary to acute pancreatitis: Temp 38.5°C, HR 105, WBC 13,200. No organ dysfunction.
Explanation
The good example specifies the underlying cause and meets SIRS criteria.

Need help with ICD-10 coding for Systemic Inflammatory Response Syndrome? Ask your questions below.

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