There are several diagnostic coding systems. The most used in clinical practice is the DSM-V. However, in hospital centers it is coded using the ICD-9 and ICD-10 system. There are some discrepancies between them, especially when it comes to neurodevelopmental problems.

Among them:

  • Simple language delay (understood as that delay in the onset of language, not associated with other neurodevelopmental problems, with normal clinical examination, and which after the appearance of the first words presents a succession of normative milestones, finally conditioning a delay of no more than 2 years, and normal language around 5 years). This diagnosis does not exist as such. The diagnostic code that refers to this concept is R62.0, Late skill development in childhood, within which they include:
    • Delay of the expected physiological development stage.
    • speech delay
    • Delay in walking
  • Global developmental delay (understood as a developmental delay that affects 2 or more domains of development (motor, language, cognition, socialization, adaptive), and which is the equivalent of the English term "global developmental delay", and included within the DSM-V (315.8 (F88)). In many manuals of medical tradition, it is considered a synonym for psychomotor delay, a term especially widespread in neuropediatric manuals to refer to development problems in children under 2 years of age (hence the term psychomotor, since the development observable especially in the first 12 months of life is predominantly motor). This diagnostic term does not exist as such. It should also be coded as R62.0, Late skill development in childhood, if we look at developmental delay as a symptom, or as G93.40, Static encephalopathy (encephalopathy, unspecified), in the event that there is an identifiable cause limited in time that has left the development problem as a sequel; or like F88, Other disorders of psychological development, which is the diagnosis with which it is correlated in the DSM-V itself, which includes:
    • Developmental agnosia
    • Other specified neurodevelopmental disorder
    • Global developmental delay.

There is a computerized version for searching.

https://eciemaps.mscbs.gob.es/ecieMaps/browser/index_10_mc.html