2027 ICD-10-CM Diagnosis Code R62.50Unspecified lack of expected normal physiological development in childhood

ICD-10-CM Codes›R00–R99›R50-R69›R62

ICD-10-CM R62.50
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

R62.50 is a billable ICD-10-CM diagnosis code for unspecified lack of expected normal physiological development in childhood. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 640 through 641. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other general signs and symptoms.

Code Identity

ICD-10-CM Code
R62.50
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified lack of expected normal physiological development in childhood
Short Description
Unsp lack of expected normal physiol dev in childhood
Parent Code
R62.5
Other and unspecified lack of expected normal physiological development in childhood

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR50-R69General symptoms and signs
CategoryR62Lack of expected normal physiological development in childhood and adults
This CodeR62.50Unspecified lack of expected normal physiological development in childhood

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • 10p partial monosomy syndrome
  • Altered growth and development
  • Amino acid below reference range
  • Body growth problem
  • Body weight AND/OR growth problem
  • Cessation of development during childhood
  • Child developmental finding
  • Childhood growth AND/OR development alteration
  • CIMDAG syndrome
  • Congenital cataract, hearing loss, severe developmental delay syndrome
  • Congenital cataract, progressive muscular hypotonia, hearing loss, developmental delay syndrome
  • Congenital prognathism
  • Congenital sideroblastic anemia, B-cell immunodeficiency, periodic fever, developmental delay syndrome
  • Craniosynostosis, facial dysmorphism, Chiari-1 malformation, developmental and language delay syndrome
  • Delay in physiological development
  • Delayed growth and development
  • Deletion of part of chromosome 10
  • Deletion of part of chromosome 5
  • Deletion of part of long arm of chromosome 5
  • DEND syndrome
  • Developmental delay
  • Developmental delay, immunodeficiency, leukoencephalopathy, hypohomocysteinemia syndrome
  • Developmental delay, overweight, facial dysmorphism, behavioral abnormalities syndrome
  • Facial dysmorphism, developmental delay, behavioral abnormalities syndrome due to 10p11.21p12.31 microdeletion
  • Fallot complex with intellectual disability and growth delay syndrome
  • False anodontia
  • Familial visceral neuropathy
  • FBLN1-related developmental delay, central nervous system anomaly, syndactyly syndrome
  • Finding of infant milestone
  • Game Friedman Paradice syndrome
  • GAPO syndrome
  • GNAO1-related developmental delay, seizures, movement disorder spectrum
  • GRACILE syndrome
  • GRIN2B-related developmental delay, intellectual disability, autism spectrum disorder
  • Growth and developmental delay, hypotonia, vision impairment, lactic acidosis syndrome
  • Growth delay, intellectual disability, hepatopathy syndrome
  • Growth retardation, mild developmental delay, chronic hepatitis syndrome
  • Hereditary congenital hypomelanotic and hypermelanotic cutaneous macules, growth retardation, intellectual disability syndrome
  • Impairment of adolescent development
  • Impairment of child development
  • Impairment of infant development
  • Impairment of newborn development
  • Inadequate achievement of developmental tasks
  • Inadequate maintenance of developmental tasks
  • Intellectual disability, developmental delay, contracture syndrome
  • Intermediate DEND syndrome
  • Joint contractures, developmental delay, Pierre Robin syndrome
  • MYT1L-related developmental delay, intellectual disability, obesity syndrome
  • Neonatal diabetes mellitus
  • Obesity, colitis, hypothyroidism, cardiac hypertrophy, developmental delay syndrome
  • Osteosclerosis, developmental delay, craniosynostosis syndrome
  • Pentose disorder
  • Physiological development failure
  • Problem of growth and development
  • Robin sequence
  • Secondary acquired sideroblastic anemia
  • Secondary sideroblastic anemia due to disease
  • Severe combined immunodeficiency with low T- and B-cell numbers
  • Severe combined immunodeficiency, microcephaly, growth retardation, sensitivity to ionizing radiation syndrome
  • Short stature, developmental delay, congenital heart defect syndrome
  • Sonoda syndrome
  • Structural abnormality of Auerbach plexus
  • Tetralogy of Fallot
  • Visceral neuropathy and brain anomaly with facial dysmorphism and developmental delay syndrome
  • WAC-related facial dysmorphism, developmental delay, behavioral abnormalities syndrome
  • X-linked microcephaly, growth retardation, prognathism, cryptorchidism syndrome

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to R62.50: its own notes plus those printed at R62.5, R62, and Chapter 18. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Infantilism NOS

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From R62.5 Other and unspecified lack of expected normal physiological development in childhood applies to 4 codes
  • HIV disease resulting in failure to thrive (B20)
  • physical retardation due to malnutrition (E45)
From R62 Lack of expected normal physiological development in childhood and adults applies to 6 codes

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Notes

General instructions on how these codes are used.

From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
  • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
  • The conditions and signs or symptoms included in categories R00-R94 consist of:
  • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
  • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
  • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
  • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
  • (e) cases in which a more precise diagnosis was not available for any other reason;
  • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SYM016
Other general signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Child Development

As children grow older, they develop in several different ways. Child development includes physical, intellectual, social, and emotional changes.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert R62.50 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
783.40 Lack norm physio dev NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About R62.50Overview

Is R62.50 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified lack of expected normal physiological development in childhood on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does R62.50 group to?

When unspecified lack of expected normal physiological development in childhood is the principal diagnosis on an inpatient stay, it groups to MS-DRG 641, 640, with relative weights from 0.7864 to 1.3392 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R62.50 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the unspecified lack of expected normal physiological development in childhood is established, that condition takes the principal position instead.

Can R62.50 be reported with B20?

Not as a rule. The Excludes1 note at R62.5, which applies to R62.50, lists "HIV disease resulting in failure to thrive (B20)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of R62.50?

Under the General Equivalence Mappings, unspecified lack of expected normal physiological development in childhood converts to ICD-9-CM 783.40 (lack norm physio dev NOS). The mapping is approximate, so confirm the match fits the documentation.