ICD-10-CM R63.5 is the diagnosis code for Abnormal weight gain. This code falls under the section "General symptoms and signs" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as R63.5. They are mutually exclusive:
Understanding where R63.5 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R63.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R63.5 is the ICD-10-CM diagnosis code for "Abnormal weight gain". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R63.5 is R63 ("Symptoms and signs concerning food and fluid intake"). R63.5 provides a more specific classification within this category.
R63.5 is located in Section R50-R69 — "General symptoms and signs" within Chapter 18 of the ICD-10-CM Tabular List.
Use R63.5 when the patients documented diagnosis matches "Abnormal weight gain" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Abnormal weight gain is R63.5.
Yes, R63.5 can be used as a primary diagnosis code since it is billable and specific.
R63.5 is in Chapter 18 of the ICD-10-CM Tabular List.
Type 1 Excludes for R63.5 include: excessive weight gain in pregnancy (O26.0-); obesity (E66.-).
Yes, R63.5 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.