R62.51
Billable

Failure to thrive (child)

Billable / Specific Code

What is Failure to thrive (child)?

ICD-10-CM R62.51 is the diagnosis code for Failure to thrive (child). 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.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for R62.51

✅ This Code Includes

  • Failure to gain weight
  • Faltering growth

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as R62.51. They are mutually exclusive:

  • failure to thrive in child under 28 days old (P92.6)

ICD-10-CM Code Hierarchy

Understanding where R62.51 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is R62.51 a billable ICD-10-CM code?

Yes, R62.51 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does R62.51 mean?

R62.51 is the ICD-10-CM diagnosis code for "Failure to thrive (child)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of R62.51?

The parent code of R62.51 is R62.5 ("Other and unspecified lack of expected normal physiological development in childhood"). R62.51 provides a more specific classification within this category.

What section is R62.51 in?

R62.51 is located in Section R50-R69 — "General symptoms and signs" within Chapter 18 of the ICD-10-CM Tabular List.

When should I use R62.51?

Use R62.51 when the patients documented diagnosis matches "Failure to thrive (child)" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Failure to thrive (child)?

The ICD-10-CM code for Failure to thrive (child) is R62.51.

Can R62.51 be used for primary diagnosis?

Yes, R62.51 can be used as a primary diagnosis code since it is billable and specific.

What chapter is R62.51 in?

R62.51 is in Chapter 18 of the ICD-10-CM Tabular List.

What conditions are excluded from R62.51?

Type 1 Excludes for R62.51 include: failure to thrive in child under 28 days old (P92.6).

Is R62.51 valid for 2026?

Yes, R62.51 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousR62.50Unspecified lack of expected normal physiological development in childhoodNext →R62.52Short stature (child)
Code Details
R62.51
Failure to thrive (child)
Billable / Specific Code
18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R50-R69 — General symptoms and signs
2026 ICD-10-CM