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Home/Diagnosis/ICD-10 Coding for Thyroid-Related Atrial Fibrillation

ICD-10 Coding for Thyroid-Related Atrial Fibrillation

E05.90
I48.91

Complete ICD-10-CM coding and documentation guide for icd-10 coding for thyroid-related atrial fibrillation includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Thyrotoxic Atrial Fibrillation
Hyperthyroid AFib
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Key Information: ICD-10 Coding for Thyroid-Related Atrial Fibrillation

Essential facts and insights about ICD-10 Coding for Thyroid-Related Atrial Fibrillation

Use ICD-10 code E05.90 for thyrotoxicosis without thyrotoxic crisis with atrial fibrillation, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Thyrotoxicosis without thyrotoxic crisis with atrial fibrillation

Billable Code
E05.90
Billable

Diagnostic Criteria

clinical:
  • • TSH <0.4 µIU/mL
  • • Free T4 >1.8 ng/dL
documentation:
  • • Explicit link between AFib and thyrotoxicosis

Applicable To

  • • Hyperthyroidism with atrial fibrillation

Important Notes

  • • Ensure thyroid function tests confirm hyperthyroidism.

Unspecified atrial fibrillation

Billable Code
I48.91
Billable

Diagnostic Criteria

clinical:
  • • EKG confirmation of AFib

Applicable To

  • • AFib not otherwise specified

Important Notes

  • • Avoid using if specific AFib type is documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

I48.19

Persistent atrial fibrillation

Use to specify the type of AFib when persistent.

Frequently Asked Questions

What is the ICD-10 code for thyroid-related atrial fibrillation?

The ICD-10 code for thyroid-related atrial fibrillation is E05.90, which covers thyrotoxicosis without thyrotoxic crisis with atrial fibrillation.

How do you code atrial fibrillation due to hyperthyroidism?

Code E05.90 for thyrotoxicosis with atrial fibrillation, and specify the type of AFib with a code like I48.19 for persistent AFib.

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