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ICD-10 Guide
DiagnosesAcute Non Recurrent Maxillary Sinusitis

Acute Non Recurrent Maxillary Sinusitis

ICD-10 Coding for Acute Non-Recurrent Maxillary Sinusitis(J01.00)

PRIMARY SPECIALTYPrimary Care
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Acute Non Recurrent Maxillary Sinusitis?
Essential facts and insights about Acute Non-Recurrent Maxillary Sinusitis

Key Clinical Considerations:

  • Presence of acute facial pain or pressure, particularly in the maxillary region.
  • Nasal congestion and purulent nasal discharge.
  • Fever and malaise may be present.
  • Physical examination may reveal tenderness over the maxillary sinuses.
  • Imaging studies (e.g., CT scan) may show mucosal thickening or fluid levels in the maxillary sinus.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the patient's symptoms, duration, and severity of the condition.
  • Use specific terminology such as 'acute maxillary sinusitis' rather than general terms.
  • Examples include: 'Patient presents with acute maxillary sinusitis characterized by facial pain and purulent nasal discharge.'
  • Document medical necessity for treatments prescribed, including rationale for imaging or referrals.
  • Quality measures may include documentation of symptom duration and treatment response.

Coding Guidelines

Usage Guidelines & Examples

  • Use this diagnosis code when the patient presents with acute symptoms localized to the maxillary sinuses without a history of recurrent episodes.
  • Do NOT use this code for chronic sinusitis or recurrent sinusitis, as these have different ICD-10 codes.
  • Compare with J01.01 (Acute recurrent maxillary sinusitis) and J01.90 (Acute sinusitis, unspecified).
  • Common errors include misclassifying chronic sinusitis as acute; ensure documentation reflects the acute nature.
  • In complex cases, consider the patient's history and symptom duration to select the appropriate code.

Code Exclusions

Important Exclusions

  • Excludes chronic maxillary sinusitis (J32.0) and recurrent maxillary sinusitis (J01.01).
  • Alternative codes for excluded conditions include J32.9 (Chronic sinusitis, unspecified).
  • Conditions are excluded due to different pathophysiological mechanisms and treatment approaches.
  • Common mistakes include coding acute sinusitis when the patient has a chronic condition; verify symptom duration.
  • Related but distinct conditions include dental issues and other types of sinusitis.

Related ICD-10 Codes

Primary Codes
J01.00
Acute maxillary sinusitis, unspecified
J01.01
Acute recurrent maxillary sinusitis
Ancillary Codes
B95-B97
R09.81
Differential Codes
J01.01
J01.01
if there are documented recurrent episodes.
J32.0
J32.0
if symptoms persist for more than 12 weeks.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Primary Care

Specialty Applications

  • Applies to patients with acute maxillary sinusitis symptoms.
  • Patient populations include adults and children, particularly those with allergies or respiratory infections.
  • Clinical settings include outpatient primary care, urgent care, and emergency departments.
  • Specialty-specific applications may involve ENT specialists for severe cases.
  • Treatment contexts include antibiotic therapy, nasal corticosteroids, and symptomatic relief.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Patient diagnosed with acute maxillary sinusitis based on clinical findings of facial pain and purulent discharge.'

Template 2

Template: 'Clinical presentation consistent with acute maxillary sinusitis including nasal congestion and fever.'

Template 3

Template: 'Diagnostic criteria for acute maxillary sinusitis met as evidenced by CT findings of mucosal thickening.'

Template 4

Template: 'Treatment plan initiated for acute maxillary sinusitis with antibiotics and nasal corticosteroids.'

Template 5

Template: 'Follow-up care for acute maxillary sinusitis including monitoring of symptom resolution and potential referral.'

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this diagnosis?

Detailed documentation of symptoms, duration, and any imaging results.

How does this differ from similar diagnoses?

Acute non-recurrent maxillary sinusitis is characterized by a single episode without prior history of similar conditions.

What are common billing considerations?

Ensure that the diagnosis is clearly documented to support medical necessity for treatments and imaging.

What procedures are typically associated?

Related CPT codes may include 99213 for office visits and 70486 for sinus CT imaging.

Are there any quality reporting implications?

Quality measures may include tracking symptom resolution and appropriate follow-up care.