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Home/Diagnosis/ICD-10 Coding for Weight Gain

ICD-10 Coding for Weight Gain

R63.5
E66.XX

Complete ICD-10-CM coding and documentation guide for icd-10 coding for weight gain includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Abnormal Weight Gain
Unexplained Weight Gain
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Key Information: ICD-10 Coding for Weight Gain

Essential facts and insights about ICD-10 Coding for Weight Gain

Use ICD-10 code R63.5 for abnormal weight gain, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Abnormal weight gain

Billable Code
R63.5
Billable

Diagnostic Criteria

clinical:
  • • Documented weight gain of 10% or more of body weight over a short period.
documentation:
  • • Provider documentation linking weight gain to clinical significance.

Applicable To

  • • Unexplained weight gain
  • • Clinically significant weight increase

Important Notes

  • • Ensure clinical significance is documented to support the use of R63.5.

Obesity

Non-Billable
E66.XX
Non-Billable

Diagnostic Criteria

clinical:
  • • Provider-documented obesity diagnosis
  • • BMI ≥30

Applicable To

  • • Obesity due to excess calories
  • • Morbid obesity

Important Notes

  • • Ensure obesity is explicitly documented by the provider.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z68.XX

Body mass index (BMI)

Use to document BMI when linked to a weight-related diagnosis.

Frequently Asked Questions

What is the ICD-10 code for abnormal weight gain?

The ICD-10 code for abnormal weight gain is R63.5. It is used when there is clinically significant weight gain without a confirmed etiology.

When should R63.5 be used instead of obesity codes?

Use R63.5 for weight gain without a confirmed obesity diagnosis. Obesity codes (E66.XX) require explicit provider documentation of obesity.

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