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J21.9
ICD-10-CM
Acute Bronchiolitis

Learn about Acute Bronchiolitis, also known as RSV Bronchiolitis or Viral Bronchiolitis, diagnosis, clinical documentation, and medical coding. Find information on healthcare best practices for Acute Bronchiolitis and understand the relevant medical terminology for accurate clinical documentation. This resource helps healthcare professionals ensure proper coding and documentation for RSV Bronchiolitis and Viral Bronchiolitis cases.

Also known as

RSV Bronchiolitis
Viral Bronchiolitis

Diagnosis Snapshot

Key Facts
  • Definition : Lower respiratory tract infection causing inflammation and obstruction of the small airways (bronchioles) in the lungs, typically affecting infants and young children.
  • Clinical Signs : Wheezing, cough, rapid breathing, difficulty breathing, nasal congestion, and fever. Severe cases may exhibit cyanosis (bluish skin).
  • Common Settings : Pediatric clinics, emergency rooms, hospitals, urgent care centers, and telehealth consultations.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC J21.9 Coding
J21

Acute bronchiolitis

Inflammation of the small airways in the lungs, typically viral.

B97.4

Respiratory syncytial virus

Infection caused by RSV, a common cause of bronchiolitis.

J00-J99

Diseases of the respiratory system

Encompasses various respiratory conditions, including bronchiolitis.

Code-Specific Guidance

Decision Tree for

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

Is the bronchiolitis acute?

  • Yes

    Is the etiology viral?

  • No

    Do NOT code as acute bronchiolitis. Consider other diagnoses like J40-J42 (Chronic bronchitis).

Code Comparison

Related Codes Comparison

When to use each related code

Description
Lower respiratory tract infection in infants and young children.
Inflammation of the bronchi, often following a viral infection.
Lung infection causing inflammation of the air sacs.

Documentation Best Practices

Documentation Checklist
  • Document symptom onset and duration.
  • Describe respiratory distress severity.
  • Note wheezing, cough, and retractions.
  • Record oxygen saturation and respiratory rate.
  • Confirm diagnosis with viral testing if available.

Coding and Audit Risks

Common Risks
  • Age Specificity

    Acute bronchiolitis coding requires specific age documentation, typically affecting infants and young children. Miscoding can occur if age isn't clearly documented.

  • RSV Confirmation

    While RSV is a common cause, confirming RSV versus other viral etiologies impacts coding and severity. Lack of testing can lead to inaccurate coding.

  • Severity Documentation

    Distinguishing between mild, moderate, and severe bronchiolitis is crucial for accurate coding and reimbursement. Insufficient documentation of respiratory distress or other severity indicators poses a risk.

Mitigation Tips

Best Practices
  • Document RSV testing, oxygen use, and respiratory support for accurate ICD-10-CM coding (J21).
  • Ensure clear CDI of bronchiolitis severity for proper DRG assignment and reimbursement.
  • Follow isolation protocols and hand hygiene to minimize nosocomial RSV transmission, ensuring compliance.
  • Educate families on home care, including nasal suctioning and hydration, to reduce readmissions.
  • Monitor respiratory status closely and escalate care promptly for signs of respiratory distress.

Clinical Decision Support

Checklist
  • Age <2 years with first episode of wheezing?
  • Symptoms include cough, tachypnea, and retractions?
  • Auscultate for wheezes, crackles, or decreased breath sounds.
  • Consider RSV or other viral testing per guidelines.
  • Assess oxygen saturation and respiratory distress for escalation.

Reimbursement and Quality Metrics

Impact Summary
  • Acute Bronchiolitis (RSV, Viral) reimbursement hinges on accurate ICD-10-CM coding (J21) and reporting.
  • Coding validation and physician documentation improve Acute Bronchiolitis claim acceptance and reduce denials.
  • Timely, specific bronchiolitis diagnosis impacts hospital quality metrics for respiratory illness management.
  • Accurate Acute Bronchiolitis coding affects DRG assignment and hospital case mix index for resource allocation.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Frequently Asked Questions

Common Questions and Answers

Q: What are the most effective evidence-based treatment strategies for managing severe acute bronchiolitis in hospitalized infants?

A: Managing severe acute bronchiolitis in hospitalized infants requires a multifaceted approach focusing on supportive care. Oxygen supplementation is crucial for maintaining adequate oxygen saturation levels. Consider implementing nasal continuous positive airway pressure (nCPAP) for infants with significant respiratory distress who are not responding adequately to supplemental oxygen alone. Suctioning of nasal secretions can help improve airway clearance, especially before feeding and respiratory treatments. While there is no role for routine antibiotic use in viral bronchiolitis, carefully monitor for secondary bacterial infections. Fluid management is essential, especially in infants with tachypnea and reduced oral intake, but avoid aggressive fluid resuscitation, as it can worsen respiratory status. Explore how bronchodilators and corticosteroids are generally not recommended in routine bronchiolitis management, according to current guidelines like those from the American Academy of Pediatrics. Learn more about the role of high-flow nasal cannula (HFNC) oxygen therapy for infants with severe bronchiolitis who fail nCPAP.

Q: How can I differentiate between acute bronchiolitis (RSV bronchiolitis) and other respiratory illnesses like bronchiolitis obliterans or pneumonia in a clinical setting?

A: Differentiating acute bronchiolitis from other respiratory illnesses requires careful consideration of clinical presentation, patient history, and sometimes, further investigations. Acute bronchiolitis, typically caused by RSV, presents with a characteristic prodrome of upper respiratory infection symptoms followed by lower respiratory tract involvement, including wheezing, crackles, and increased work of breathing. In contrast, bronchiolitis obliterans, a more serious condition, often has a history of severe lung injury or infection and may present with persistent wheezing and airflow obstruction. Pneumonia, whether bacterial or viral, may present with fever, cough, and focal lung findings on physical exam or chest x-ray. While a clinical diagnosis is often sufficient for acute bronchiolitis, consider implementing further diagnostic testing such as chest x-ray or viral panels to rule out other diagnoses, particularly in infants with severe illness or atypical presentations. Explore how auscultation findings can differ between these conditions, with acute bronchiolitis presenting with diffuse wheezes and crackles, while pneumonia may present with localized findings. Learn more about the specific diagnostic criteria for bronchiolitis obliterans, which often require pulmonary function testing and imaging studies.

Quick Tips

Practical Coding Tips
  • Code J21.9 for Acute Bronchiolitis
  • Document RSV or viral etiology
  • Specificity improves coding accuracy
  • Check for coexisting conditions
  • Query physician if unclear

Documentation Templates

Patient presents with symptoms consistent with acute bronchiolitis, clinically manifested by lower respiratory tract infection (LRTI) with wheezing, cough, and respiratory distress.  Differential diagnosis includes respiratory syncytial virus (RSV) bronchiolitis, viral bronchiolitis, and other viral lower respiratory tract infections.  Onset of symptoms began approximately [number] days prior to presentation with initial symptoms of [list initial symptoms e.g., rhinorrhea, congestion].  Physical examination reveals [describe findings e.g., tachypnea, intercostal retractions, expiratory wheezing, crackles].  Oxygen saturation is [percentage] on room air.  Patient is [age] months old, placing them at increased risk for severe bronchiolitis.  Considering the patient's age, clinical presentation, and current epidemic season, RSV bronchiolitis is the suspected etiology.  Nasal swab for respiratory viral panel was obtained.  Treatment plan includes supportive care with supplemental oxygen as needed to maintain oxygen saturation above 90%,  frequent nasal suctioning, and close monitoring for respiratory decompensation.  Patient education provided regarding hydration, symptom management, and warning signs of worsening respiratory distress.  Follow-up recommended in [ timeframe e.g., 2-3 days] to assess respiratory status and response to treatment.  ICD-10 code J21.9, Bronchiolitis, unspecified, is documented for medical billing and coding purposes.  Patient’s condition is currently stable, but ongoing monitoring and potential for hospitalization will be considered if symptoms worsen.
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