ICD-11 Codes
for CA02.0 - Acute pharyngitis due to other bacteria

Teodor Jurukovski January 1, 1970

Fact checked by: Teodor Jurukovski

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Understanding Acute Bacterial Pharyngitis

Acute bacterial pharyngitis, identified by the ICD-11 code CA02.0, refers to a rapid onset inflammation of the pharynx, the part of the throat behind the mouth and nasal cavity. This condition is specifically caused by bacteria. While viral infections are more common causes of pharyngitis, bacterial infections are clinically significant due to the potential for serious complications if left untreated. This diagnosis falls under the broader category of acute pharyngitis.

Key Symptoms of Bacterial Sore Throat

Patients experiencing acute bacterial pharyngitis often present with a sudden, severe sore throat. Key symptoms can include:

• Pain when swallowing or speaking.
• Fever.
• Swollen, tender lymph nodes in the neck.
• Redness and swelling in the throat and tonsils.
• White patches or streaks on the tonsils.
• Headache and general fatigue.

Unlike viral pharyngitis, symptoms like a cough, runny nose, or hoarseness are less common with bacterial infections.

Identifying the Causes of Bacterial Pharyngitis

While Streptococcus pyogenes (Group A Streptococcus) is a well-known cause, acute bacterial pharyngitis can also be attributed to other bacteria. These include Group C and G streptococci, which often affect young adults. Other potential bacterial agents include Neisseria gonorrhea (often associated with sexual transmission), Corynebacterium diphtheriae (rare in vaccinated populations), Mycoplasma pneumoniae, and Chlamydia pneumoniae. Transmission typically occurs through respiratory droplets.

Diagnosing Acute Bacterial Pharyngitis

Confirming a diagnosis of acute bacterial pharyngitis typically involves more than just a physical examination, as symptoms can overlap with viral infections. Healthcare providers often use diagnostic tools such as rapid antigen detection tests (RADTs) or nucleic acid amplification tests (NAATs) performed on throat swabs. In some cases, a throat culture may be necessary to identify the specific bacterial pathogen responsible for the infection.

Managing Bacterial Throat Infections

The primary goals in managing acute bacterial pharyngitis are to alleviate symptoms and prevent potential complications, such as rheumatic fever or glomerulonephritis. Treatment usually involves a course of antibiotics prescribed by a healthcare professional once a bacterial cause is confirmed. Antibiotics are not typically prescribed empirically. Supportive care includes adequate rest, sufficient fluid intake, and over-the-counter pain relievers for fever and throat discomfort.

Coding and Documentation for CA02.0

For accurate medical billing and record-keeping, the ICD-11 code CA02.0 is used to denote Acute bacterial pharyngitis. This code specifically identifies bacterial infections of the pharynx. When documenting, clinicians should clearly state the diagnosis and any confirmed bacterial agents. This ensures precise reporting for patient care and administrative purposes. The official condition name is Acute bacterial pharyngitis. Common clinical synonyms include acute pharyngitis due to other bacteria and bacterial sore throat.