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K65.2
ICD-10-CM
Spontaneous Bacterial Peritonitis

Find comprehensive information on Spontaneous Bacterial Peritonitis (SBP) diagnosis, including clinical documentation requirements, medical coding guidelines, and healthcare best practices. Learn about ascites culture, paracentesis, neutrophil count, and SAAG calculation for accurate SBP diagnosis and appropriate ICD-10 coding. This resource provides valuable insights for physicians, nurses, and medical coders seeking to improve the accuracy and efficiency of SBP diagnosis and documentation.

Also known as

SBP

Diagnosis Snapshot

Key Facts
  • Definition : Bacterial infection of ascitic fluid without an apparent source.
  • Clinical Signs : Fever, abdominal pain, ascites, altered mental status, low blood pressure.
  • Common Settings : Cirrhosis, liver failure, ascites, immunocompromised patients.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC K65.2 Coding
K65.2

Peritonitis

Inflammation of the peritoneum, the membrane lining the abdominal cavity.

K70-K77

Diseases of liver

Covers various liver conditions, often associated with SBP.

R18

Ascites

Abnormal fluid buildup in the abdomen, a key factor in SBP.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Ascites present?

  • Yes

    Infection suspected?

  • No

    SBP cannot be diagnosed without ascites. Review clinical findings.

Code Comparison

Related Codes Comparison

When to use each related code

Description
Spontaneous Bacterial Peritonitis
Secondary Bacterial Peritonitis
Culture-Negative Neutrocytic Ascites

Documentation Best Practices

Documentation Checklist
  • Ascitic fluid: PMN count >250/mm3
  • Document SAAG (serum-ascites albumin gradient)
  • Rule out secondary peritonitis
  • Positive ascitic fluid culture or Gram stain
  • Symptoms/signs: fever, abdominal pain/tenderness

Coding and Audit Risks

Common Risks
  • Code Specificity

    Coding SBP without specifying organism or underlying cause (e.g., cirrhosis) leads to inaccurate severity and reimbursement.

  • Paracentesis Documentation

    Insufficient documentation of paracentesis procedure, including positive ascites culture, impacts code assignment and audit validity.

  • Secondary Peritonitis

    Miscoding secondary peritonitis (e.g., perforation) as SBP due to similar symptoms can lead to incorrect diagnosis reporting.

Mitigation Tips

Best Practices
  • Document ascites, infection signs, and PMN count for accurate ICD-10-CM K65.2 coding.
  • Improve CDI: Specify paracentesis findings, culture results, and antibiotic treatment.
  • Ensure compliance: Follow SBP guidelines for diagnosis, treatment, and prophylaxis.
  • For appropriate CPT coding (49082), clearly document paracentesis procedure.
  • Timely diagnosis and treatment improve patient outcomes and reduce healthcare costs.

Clinical Decision Support

Checklist
  • Ascites fluid PMN count >= 250/mm3?
  • Check SAAG (serum-ascites albumin gradient) > 1.1 g/dL?
  • Rule out secondary peritonitis (perforation, abscess)?
  • Culture ascites fluid before antibiotics
  • Document clinical findings, PMN count, and SAAG

Reimbursement and Quality Metrics

Impact Summary
  • Spontaneous Bacterial Peritonitis reimbursement hinges on accurate ICD-10-CM K65.2 coding and appropriate supporting documentation for optimal payment.
  • Quality metrics impacted: Sepsis bundle compliance, length of stay, readmission rates. Accurate coding crucial for performance reporting.
  • Coding Spontaneous Bacterial Peritonitis impacts hospital-acquired condition reporting and value-based purchasing programs.
  • DRG assignment for SBP impacts case mix index and overall hospital reimbursement. Coding specificity crucial for accurate reflection of resource utilization.

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Frequently Asked Questions

Common Questions and Answers

Q: How do I differentiate Spontaneous Bacterial Peritonitis (SBP) from secondary bacterial peritonitis in a patient with ascites?

A: Differentiating Spontaneous Bacterial Peritonitis (SBP) from secondary bacterial peritonitis hinges on identifying the source of infection. SBP, by definition, arises without an intra-abdominal, surgically treatable source. Secondary bacterial peritonitis, on the other hand, results from a source such as a perforated bowel, appendicitis, or a leaking abscess. Clinically, both can present with similar symptoms like fever, abdominal pain, and altered mental status. Key diagnostic clues for secondary peritonitis include localized abdominal tenderness, guarding, or imaging findings suggestive of a focal source. A thorough history, physical exam, and imaging studies (e.g., CT abdomen) are crucial for accurate diagnosis. Lab analysis of ascitic fluid in SBP typically reveals a PMN count greater than 250 cells/mm3, often with a monobacterial culture. Explore how ascitic fluid analysis can help pinpoint the cause of peritonitis. Consider implementing a standardized diagnostic approach for evaluating ascites to ensure accurate and timely differentiation.

Q: What is the recommended antibiotic treatment regimen for Spontaneous Bacterial Peritonitis (SBP) in patients with cirrhosis and what are the considerations for antibiotic resistance?

A: The recommended empiric antibiotic treatment for Spontaneous Bacterial Peritonitis (SBP) often involves a third-generation cephalosporin, such as cefotaxime or ceftriaxone. Fluoroquinolones like ofloxacin or ciprofloxacin may be considered in areas with low rates of quinolone resistance. Given the increasing prevalence of multidrug-resistant organisms, particularly in patients with prior antibiotic exposure or healthcare-associated SBP, antibiotic selection should be guided by local resistance patterns and institutional guidelines. Treatment duration typically ranges from 5 to 7 days and should be adjusted based on clinical response and culture results. Learn more about the emerging challenges of antibiotic resistance in SBP and explore strategies for optimizing antibiotic stewardship in patients with cirrhosis.

Quick Tips

Practical Coding Tips
  • Code ascites, PMN>250
  • Document SBP symptoms
  • Query physician for positive culture
  • Rule out secondary peritonitis
  • Consider K75.0, R18.8

Documentation Templates

Spontaneous bacterial peritonitis (SBP) diagnosed in a patient with ascites.  Patient presents with classic SBP symptoms including fever, abdominal pain, and altered mental status.  Physical examination reveals abdominal tenderness and distension.  Paracentesis performed, revealing cloudy ascitic fluid.  Ascitic fluid analysis demonstrates a polymorphonuclear (PMN) cell count greater than 250 cellsmm3, consistent with the diagnostic criteria for SBP.  No evidence of a secondary cause of peritonitis identified.  Patient has a history of cirrhosis and hepatic encephalopathy, increasing their risk for SBP.  Blood cultures drawn.  Intravenous antibiotic therapy initiated with a third-generation cephalosporin, such as cefotaxime, for empiric SBP treatment.  Patient's Model for End-Stage Liver Disease (MELD) score calculated for prognostication and assessment of liver disease severity.  Diagnosis codes for SBP, cirrhosis, and hepatic encephalopathy will be documented for accurate medical coding and billing.  Patient will be monitored closely for response to therapy and development of complications such as hepatorenal syndrome.  Prophylactic antibiotic therapy will be considered for secondary prophylaxis of SBP recurrence.