R62.51

Billable

ChapterR00–R99

Ranksubcategory

Official Description

Failure to thrive (child)

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

Instructional Notes

Includes

Failure to gain weight
Faltering growth

Excludes1(Not coded here)

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

General instructions are available for the parent sections:

View CH18 Notes View R62 Notes View R62.5 Notes

Clinical Hierarchy

CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R50-R69General symptoms and signs (R50-R69)

R62Lack of expected normal physiological development in childhood and adults

R62.5Other and unspecified lack of expected normal physiological development in childhood

R62.51Failure to thrive (child)

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R62.51:

subcategoryR62.5

Other and unspecified lack of expected normal physiological development in childhood

View context instructions

categoryR62

Lack of expected normal physiological development in childhood and adults

View context instructions

chapterCH18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to R62.51. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

4 raw paths

Failure, failed2 unique routes

gain weight (child over 28 days old)→R62.51

to thrive (child over 28 days old)→R62.51

Faltering growth1 unique routes

Direct index entry→R62.51

Lack of1 unique routes

development (physiological)

failure to thrive (child over 28 days old)→R62.51