The primary ICD-10-CM code for upper respiratory infection (URI) is J06.9 (Acute upper respiratory infection, unspecified), a billable code reported when an acute upper respiratory infection is documented without specifying the anatomic site.
Primary codes
Billable
Billable
Extension
—
7th character
—
POA exempt
No
Inclusion terms
- Upper respiratory disease, acute
- Upper respiratory infection NOS
Coding risks
- Assigning when documentation supports a more specific code
Hierarchy
Code ranges
Acute upper respiratory infections of multiple and unspecified sites
Covers acute URIs affecting multiple sites or where the specific anatomic site of infection is not documented.
Acute upper respiratory infections
Groups acute infections of the nose, sinuses, pharynx, larynx, trachea, and other upper airway sites.
Acute nasopharyngitis (common cold)
Designates the common cold, an acute viral infection primarily affecting the nasopharynx.
Acute bronchitis
Acute inflammatory infection of the bronchi, classified as a lower respiratory tract condition.
COVID-19
Confirmed COVID-19 infection identified by SARS-CoV-2, regardless of respiratory site or severity.
Coding risks
Avoid these common coding issues when reporting Upper Respiratory Infection.
Impact
Assigning J06.9 without explicit site may miscode when a specific site like pharyngitis (J02.9) or sinusitis (J01.90) is supportable.
Mitigation
Consider querying the provider when site is absent rather than inferring from symptoms like sore throat or nasal congestion.
Related codes
Ancillary and co-coding
Codes commonly reported with the primary diagnosis on the same claim.
Z-code variants
Family history, personal history, or screening encounter codes related to this condition.
In pregnancy
Pregnancy-specific O-code adaptations used in place of the primary when the condition occurs during or complicates pregnancy.
Differential codes
Alternative or commonly confused codes to consider when documentation suggests a different condition than the primary diagnosis.
Frequently asked questions
Use J06.9 only when the provider documents an acute upper respiratory infection without specifying the anatomic site or causal organism.
References
Compiled from the following authoritative coding references. Last updated 2026-08-04.