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ICD-10 Coding for Throat Swelling(J02.0, T78.3XXA, R22.1)

Complete ICD-10-CM coding and documentation guide for Throat Swelling. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Pharyngeal EdemaThroat EdemaAngioedema of Throat

Related ICD-10 Code Ranges

Complete code families applicable to Throat Swelling

J02-J03Primary Range

Acute pharyngitis and tonsillitis

Covers infectious causes of throat swelling, including streptococcal pharyngitis.

Angioedema

Covers allergic reactions causing throat swelling, such as angioedema.

Localized swelling, mass and lump of skin and subcutaneous tissue

Used for non-specific throat swelling when the etiology is unknown.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
J02.0Streptococcal pharyngitisUse when streptococcal infection is confirmed by testing.
  • Positive rapid strep test (87880)
  • Culture-confirmed Group A Streptococcus
T78.3XXAAngioedema, initial encounterUse for allergic reactions causing throat swelling, confirmed by clinical findings.
  • Documentation of allergen exposure
  • C4 complement levels <15 mg/dL
R22.1Localized swelling, mass and lump of skin and subcutaneous tissue, neckUse when the cause of swelling is unknown or non-specific.
  • Ultrasound or MRI showing localized edema without infection

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for throat swelling

Essential facts and insights about Throat Swelling

The ICD-10 code for throat swelling varies by cause: J02.0 for infections, T78.3XXA for allergies, and R22.1 for non-specific cases.

Primary ICD-10-CM Codes for throat swelling

Streptococcal pharyngitis
Billable Code

Decision Criteria

clinical Criteria

  • Presence of tonsillar exudate and tender cervical nodes

Applicable To

  • Strep throat

Excludes

  • Acute sore throat NOS (J02.9)

Clinical Validation Requirements

  • Positive rapid strep test (87880)
  • Culture-confirmed Group A Streptococcus

Code-Specific Risks

  • Incorrectly using for viral pharyngitis

Coding Notes

  • Ensure documentation specifies the presence of streptococcal infection.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Pain in throat

R07.0
Use as a secondary code to indicate throat pain.

Localized swelling, mass and lump of skin and subcutaneous tissue, neck

R22.1
Use to indicate localized swelling in the neck area.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Acute pharyngitis, unspecified

J02.9
Use J02.9 when pharyngitis is confirmed but not specified as streptococcal.

Hereditary angioedema

D84.1
Use D84.1 for hereditary cases, confirmed by genetic testing.

Streptococcal pharyngitis

J02.0
Use J02.0 when infection is confirmed by testing.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Throat Swelling to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code J02.0.

Impact

Clinical: May lead to inappropriate treatment, Regulatory: Non-compliance with coding standards, Financial: Potential for claim denials

Mitigation Strategy

Ensure documentation supports specific code selection, Use decision criteria to guide code choice

Impact

Reimbursement: Incorrect DRG assignment, Compliance: Potential for audit failure, Data Quality: Inaccurate clinical data

Mitigation Strategy

Code J02.0 when exudate/Centor criteria present

Impact

Reimbursement: May affect reimbursement for allergy-related treatments, Compliance: Non-compliance with coding guidelines, Data Quality: Loss of specific clinical data

Mitigation Strategy

Specify 'Anaphylaxis WITH laryngeal edema (T78.2XXA)'

Impact

Failure to document specific etiology can lead to incorrect coding.

Mitigation Strategy

Implement thorough documentation practices and regular coding audits.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Throat Swelling, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Throat Swelling

Use these documentation templates to ensure complete and accurate documentation for Throat Swelling. These templates include all required elements for proper coding and billing.

Emergency Department Note (Angioedema)

Specialty: Emergency Medicine

Required Elements

  • HPI
  • Exam findings
  • Assessment
  • Plan

Example Documentation

HPI: '45M with sudden-onset tongue swelling 2hrs after lisinopril dose, denies urticaria. Dysphagia present, no stridor.' Exam: 'Marked tongue edema (Grade III), uvula not visualized. No wheezing. Flexible laryngoscopy: supraglottic edema.' Assessment: 'ACE inhibitor-induced angioedema (T78.3XXA)' Plan: 'Discontinue ACEi, epinephrine 0.3mg IM, ICU monitoring'

Examples: Poor vs. Good Documentation

Poor Documentation Example
Throat swelling after eating.
Good Documentation Example
Sudden uvular edema 30 mins after peanut ingestion, epinephrine administered.
Explanation
The good example specifies the allergen and treatment, providing clear clinical context.

Primary Care Note (Infectious)

Specialty: Family Medicine

Required Elements

  • HPI
  • Exam findings
  • Labs
  • Assessment

Example Documentation

HPI: '7F with 3-day throat pain, fever 101.8°F, no cough. Exposure to strep at school.' Exam: 'Tonsillar exudate 3+, tender 2cm anterior cervical nodes.' Labs: 'Rapid strep positive (87880QW)' Assessment: 'J02.0 - Streptococcal pharyngitis'

Examples: Poor vs. Good Documentation

Poor Documentation Example
Swollen throat, prescribe amoxicillin.
Good Documentation Example
Tonsillar hypertrophy with palatal petechiae, rapid strep positive.
Explanation
The good example provides specific clinical findings and test results, supporting the diagnosis.

Need help with ICD-10 coding for Throat Swelling? Ask your questions below.

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