Lack of expected normal physiological development in childhood and adults (R62) ICD-10-CM
The R62 code range covers lack of expected normal physiological development in childhood and adults with 8 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the R62 Range 8 codes · 6 billable
- R62 Lack of expected normal physiological development in childhood and adultsNon-billable
- R62.0 Delayed milestone in childhood
- R62.5 Other and unspecified lack of expected normal physiological development in childhoodNon-billable
- 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
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the R62 range.
Failure to Thrive
A condition of substandard growth or diminished capacity to maintain normal function.
Hypertelorism
Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.
Livedo Reticularis
A condition characterized by a reticular or fishnet pattern on the skin of lower extremities and other parts of the body. This red and blue pattern is due to deoxygenated blood in unstable dermal blood vessels. The condition is intensified by cold exposure and relieved by rewarming.
Livedoid Vasculopathy
A rare cutaneous thrombotic disease due to occlusion of dermal vessels. It is characterized by purpuric maculae and ulcerations especially during summer which form scars called atrophie blanche. It is more associated with other syndromes (e.g., PROTEIN C DEFICIENCY; HYPERHOMOCYSTEINEMIA). Livedo reticularis with systemic involvement and stroke is SNEDDON SYNDROME.
Lumbosacral Region
Region of the back including the LUMBAR VERTEBRAE, SACRUM, and nearby structures.
Mongolian Spot
A bluish-gray to gray-brown benign, melanocytic nevus found usually in the LUMBOSACRAL REGION of dark-skinned people, especially those of East Asian ancestry. It is usually congenital or appears shortly after birth, and disappears in childhood.
Sneddon Syndrome
A systemic non-inflammatory arteriopathy primarily of middle-aged females characterized by the association of LIVEDO RETICULARIS, multiple thrombotic CEREBRAL INFARCTION; CORONARY DISEASE, and HYPERTENSION. Elevation of antiphospholipid antibody titers (see also ANTIPHOSPHOLIPID SYNDROME), cardiac valvulopathy, ISCHEMIC ATTACK, TRANSIENT; SEIZURES; DEMENTIA; and chronic ischemia of the extremities may also occur. Pathologic examination of affected arteries reveals non-inflammatory adventitial fibrosis, thrombosis, and changes in the media (From Jablonski, Dictionary of Syndromes & Eponymic Diseases, 2d ed; Adams et al., Principles of Neurology, 6th ed, p861; Arch Neurol 1997 Jan;54(1):53-60). Mutations in the CECR1 gene (ADA2 protein, human) are associated with Sneddon syndrome.
Tetralogy of Fallot
A combination of congenital heart defects consisting of four key features including VENTRICULAR SEPTAL DEFECTS; PULMONARY STENOSIS; RIGHT VENTRICULAR HYPERTROPHY; and a dextro-positioned AORTA. In this condition, blood from both ventricles (oxygen-rich and oxygen-poor) is pumped into the body often causing CYANOSIS.
About the R62 Code Range
The ICD-10 code R62 and its subcategories describe conditions related to the lack of expected normal physiological development in both children and adults. These codes capture various developmental delays and growth issues, such as delayed milestones, failure to thrive, and short stature.
This set of codes is used to identify and document specific developmental concerns. For example, R62.0 covers delayed milestones in childhood, including common signs like delayed walking or speech, often recorded as "delayed milestone" or "delayed toilet training." The codes R62.51 and R62.52 refer to failure to thrive and short stature in children, respectively, which include symptoms like slow weight gain or unusually low height for age. The unspecified category, R62.50, includes diverse developmental problems such as growth delays, intellectual disabilities, and syndromes affecting physical and neurological development. Additionally, R62.7 is used for documenting adult failure to thrive, capturing insufficient weight gain or growth issues in adults. These codes help healthcare professionals accurately classify and monitor developmental challenges, guiding appropriate care and intervention.
Questions About This Page
How many billable codes are in the R62 range?
Of the 8 codes in this range, 6 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the R62 range classify?
The range classifies lack of expected normal physiological development in childhood and adults. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
