ICD-10-CM
ICD-10 code for Failure to thrive: R62.51
The closest CDC title for "Failure to thrive" is R62.51, Failure to thrive (child). R62.51 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under R62, then other CDC titles that name failure to thrive (child)
A header groups codes and is not billed. A billable code is one you can report.
- R62Lack of expected normal physiological development in childhood and adultsHeader
- R62.0Delayed milestone in childhoodBillable
- R62.5Other and unspecified lack of expected normal physiological development in childhoodHeader
- R62.50Unspecified lack of expected normal physiological development in childhoodBillable
- R62.51Failure to thrive (child)Billable
- R62.52Short stature (child)Billable
- R62.59Other lack of expected normal physiological development in childhoodBillable
- R62.7Adult failure to thriveBillable
Excludes1
Related conditions
Related pages
- R62.51 code detailsNotes, nearby codes, CMS-HCC group
- Category R62Every code under it
- Chapter 18Symptoms, signs and abnormal clinical findings
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Failure to thrive?
The closest CDC title for "Failure to thrive" is R62.51, Failure to thrive (child). R62.51 is a billable code.
Is R62.51 billable?
Yes. R62.51 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to R62.51?
The CDC tabular list gives 6 Excludes1 notes (not coded together) for R62.51 and the categories above it. They are listed on this page.
What chapter is R62.51 in?
Chapter 18. Symptoms, signs and abnormal clinical findings.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.