ICD Code E05.90

ICD code E05.90 is used to classify a condition known as thyrotoxicosis, which is an overactive thyroid gland producing excessive thyroid hormones. This specific code indicates that the condition is unspecified, meaning that the exact cause or type of thyrotoxicosis is not detailed. Additionally, it specifies that the patient is not experiencing a thyrotoxic crisis or storm, which are severe, life-threatening complications of thyrotoxicosis. This code is essential for healthcare providers to accurately document and manage the patient's condition in their medical records and for billing purposes.

When considering the use of the ICD code for thyrotoxicosis, unspecified without thyrotoxic crisis or storm, healthcare providers should evaluate the following diagnostic criteria and symptoms:

1. Elevated Thyroid Hormone Levels: Confirmed through laboratory tests showing increased levels of free thyroxine (T4) and/or triiodothyronine (T3).

2. Suppressed Thyroid-Stimulating Hormone (TSH): Laboratory results indicating low or undetectable levels of TSH, suggesting hyperactivity of the thyroid gland.

3. Unexplained Weight Loss: Significant and unintended weight loss despite normal or increased appetite.

4. Increased Heart Rate: Persistent tachycardia or palpitations not attributable to other cardiovascular conditions.

5. Heat Intolerance: Sensitivity to heat, often accompanied by excessive sweating.

6. Nervousness or Anxiety: Increased levels of anxiety, irritability, or nervousness without other psychological causes.

7. Tremors: Fine tremors, particularly in the hands, that are noticeable and persistent.

8. Fatigue or Muscle Weakness: Generalized fatigue or muscle weakness, especially in the upper arms and thighs.

9. Changes in Menstrual Patterns: Irregular menstrual cycles or amenorrhea in women.

10. Increased Bowel Movements: More frequent bowel movements or diarrhea without gastrointestinal disease.

11. Goiter: Presence of an enlarged thyroid gland, which may be visible or palpable.

12. Ocular Symptoms: Mild eye symptoms such as irritation or dryness, without the severe manifestations seen in thyroid eye disease.

These criteria should be assessed in conjunction with a thorough patient history and physical examination to ensure accurate diagnosis and appropriate use of the ICD code.

For the ICD code E05.90, which pertains to thyrotoxicosis, unspecified without thyrotoxic crisis or storm, the relevant CPT codes that may be applicable for treatment and management include:

1. 84436 - Thyroxine; total
2. 84439 - Thyroxine; free
3. 84443 - Thyroid stimulating hormone (TSH)
4. 84479 - Thyroid hormone (T3 or T4) uptake or thyroid hormone binding ratio (THBR)
5. 80091 - Thyroid panel with TSH
6. 80092 - Thyroid panel without TSH
7. 78012 - Thyroid uptake, single or multiple determinations
8. 78013 - Thyroid imaging (including vascular flow), with uptake, single or multiple determinations
9. 78014 - Thyroid imaging (including vascular flow), with uptake, with stimulation or suppression

These CPT codes are commonly used in the diagnostic evaluation and management of conditions related to thyroid function, which may be relevant for patients with the ICD code E05.90. It is important for healthcare providers to select the appropriate CPT codes based on the specific services rendered and the clinical context.

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