R62.7 Adult failure to thrive

Billable ICD-10-CM code, FY2026.

Applies from R62 Lack of expected normal physiological development in childhood and adults

Excludes1 (never code together)

• delayed puberty (E30.0)
• gonadal dysgenesis (Q99.1)
• hypopituitarism (E23.0)

MS-DRG index

Defines the logic of DRG(s) 640-641 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 783.7 Adult failure to thrive

Medicare Code Edits (MCE v43.1 (April 2026))

• Adult diagnoses (age 15 through 124): Age conflict edit. These diagnoses are clinically expected only in patients age 15 through 124.

Code annotations containing back-references to R62.7

Back-references to R62.7

• Type 2 Excludes: E63 Other nutritional deficiencies ("failure to thrive, adult (R62.7)")
• Type 2 Excludes: E88.A Wasting disease (syndrome) due to underlying condition ("failure to thrive (R62.51, R62.7)")

Diagnosis Index entries for R62.7

• Failure, failed › gain weight (child over 28 days old) › adult
• Failure, failed › to thrive (child over 28 days old) › adult
• Lack of › development (physiological) › failure to thrive (child over 28 days old) › adult

Nearby codes

• R62.5 Other and unspecified lack of expected normal physiological development in childhood
• R62.50 Unspecified lack of expected normal physiological development in childhood
• R62.51 Failure to thrive (child)
• R62.52 Short stature (child)
• R62.59 Other lack of expected normal physiological development in childhood
• R62.7 Adult failure to thrive (this code)