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ICD Hub / Diseases of the respiratory system (J00–J99) / CA02.Z - Acute pharyngitis, unspecified
ICD-11

ICD-11 Codes
for CA02.Z - Acute pharyngitis, unspecified
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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What Causes Acute Pharyngitis?

The primary cause of acute pharyngitis, identified by the ICD-11 code CA02.Z, is typically a viral infection, such as those responsible for the common cold or influenza. Less frequently, bacterial infections can be the culprit. Environmental factors and habits can also contribute, including exposure to irritants like smoke, overuse of the voice through shouting, or even acid reflux from the stomach. Allergies leading to postnasal drip can also irritate the throat, presenting similar symptoms.

Recognising the Signs of Acute Pharyngitis

Individuals experiencing acute pharyngitis, the condition coded as CA02.Z, may notice several symptoms. These can include a general feeling of discomfort, a noticeable fever, and pain when swallowing. Visually, the pharynx may appear red and swollen. Other accompanying symptoms can involve swollen lymph nodes in the neck, a sore throat, and sometimes a cough or runny nose.

Diagnosing Acute Pharyngitis

To diagnose acute pharyngitis, coded as CA02.Z, healthcare professionals will typically review a patient's reported symptoms and conduct a physical examination. This examination often involves a visual inspection of the throat, tonsils, and tongue. In some cases, a rapid strep test or throat culture may be performed to rule out or confirm a bacterial infection, which can influence treatment decisions.

Managing Acute Pharyngitis

Management for acute pharyngitis (ICD-11 code CA02.Z) largely depends on its underlying cause. For viral infections, treatment focuses on symptom relief. This may include over-the-counter pain relievers such as paracetamol or ibuprofen, throat lozenges, warm or cold liquids, and saltwater gargles. Ensuring adequate rest and hydration is also important. Antibiotics are generally not effective for viral pharyngitis but may be prescribed if a bacterial infection is identified.

Seeking Professional Medical Attention

While many cases of acute pharyngitis resolve on their own, it is advisable to consult a healthcare provider if symptoms persist for longer than a week, worsen significantly, or are accompanied by severe throat pain, difficulty breathing or swallowing, a high fever (over 38°C or 100.4°F), or the appearance of a visible bulge in the throat.

Understanding Acute Pharyngitis

Acute pharyngitis, identified by the ICD-11 code CA02.Z, refers to an inflammation or irritation of the pharynx, the part of the throat behind the mouth and nasal cavity. It is a common condition, often associated with the symptoms of a cold or other upper respiratory infections. This condition typically presents as a scratchy or burning sensation in the throat, which can make swallowing and speaking uncomfortable. While often self-limiting, understanding its nature is key for appropriate management.

Frequently asked questions

What is the ICD-11 classification meaning of CA02.Z?
CA02.Z is the ICD-11 code for Acute pharyngitis, unspecified. It denotes an inflammation or irritation of the pharynx or tonsils where the specific cause or type is not identified in the clinical documentation.
When should the ICD-11 code CA02.Z be used in coding?
CA02.Z should be used when a diagnosis of acute pharyngitis is documented, but the clinical information does not specify the causative agent (e.g., bacterial, viral) or other distinguishing features that would allow for a more specific code assignment within the CA02 block.
How does CA02.Z differ from other acute pharyngitis codes in ICD-11?
CA02.Z is a residual category for acute pharyngitis. It is used when a more specific code, such as CA02.0 (Acute bacterial pharyngitis) or CA02.1 (Acute viral pharyngitis), cannot be applied because the documentation lacks the necessary detail to specify the etiology.
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