Angioedema ICD-10-CM Codes

What ICD-10 codes are used for angioedema?

Angioedema is a medical condition characterized by swelling beneath the skin, usually around the eyes and lips. Here are some commonly used angioedema ICD codes:

• T78.3XXA: Angioneurotic edema, initial encounter. This code documents an initial encounter with a patient with angioedema due to an allergic reaction.
• T78.3XXD: Angioneurotic edema, subsequent encounter. This code applies to follow-up visits for patients dealing with allergic angioedema.
• T78.3XXS: Angioneurotic edema, sequela. This code is used for complications or conditions that directly result from allergic angioedema.
• T78.2XXA: Anaphylactic shock, unspecified, initial encounter. Used when a patient presents with an unspecified form of anaphylactic shock for the first time.
• T78.2XXD: Anaphylactic shock, unspecified, subsequent encounter. This code is for follow-up visits for patients with an unspecified form of anaphylactic shock.‍
• T78.2XXS: Anaphylactic shock, unspecified, sequela. Used for conditions that result directly from an unspecified form of anaphylactic shock.

Which angioedema ICD codes are billable?

Here is a summary of whether the ICD codes mentioned above are billable:

• T78.3XXA: Yes, this code is billable and used for the initial encounter with an allergic angioedema patient.
• T78.3XXD: Yes, this billable code applies to follow-up visits for patients dealing with allergic Angioedema.
• T78.3XXS: Yes, this billable code is used for complications arising from allergic Angioedema.
• T78.2XXA: Yes, this billable code is used for the initial encounter with an unspecified form of anaphylactic shock.
• T78.2XXD: Yes, this code is billable and used for follow-up visits for patients dealing with an unspecified form of anaphylactic shock.
• T78.2XXS: Yes, this billable code is used for conditions resulting from an unspecified form of anaphylactic shock.

Clinical information

Angioedema is a rapid, localized skin swelling that often affects deeper layers of the skin and mucosa. The swelling is usually non-itchy but can be painful. Here are some essential points:

• Angioedema can occur due to an allergic reaction or non-allergic causes.
• It often affects areas with loose tissues, such as the face, throat, and limbs.
• It may be accompanied by urticaria (hives), which is treated by serum urticaria therapy (autologous serum therapy).
• The condition can have adverse effects and become life-threatening if it causes airway obstruction.
• While this can be idiopathic, it can be caused by external causes, like latex, venomous insect bites, taking medication, or food that a person is allergic to.
• Depending on where the angioedema is located, it could lead to certain other consequences if left unaddressed, such as asphyxia, difficulty breathing, and death.
• Treatments include avoiding triggers, antihistamines, and steroids.
• Genetic angioedema is a hereditary condition requiring different treatment approaches.

Synonyms include

• Angioneurotic edema
• Allergic angioedema
• Anaphylactic shock
• Non-allergic angioedema
• Hereditary angioedema
• Acute angioedema

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