315.9 DEVELOPMENT DELAY NOS


Code Information

Diagnosis Code: 315.9

Short Description: Development delay NOS

Long Description: Unspecified delay in development

Code Classification:

  • Mental disorders (290–319)
    • Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300-316)
      • 315 Specific delays in development
        • 315.9 Development delay NOS

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 315.9 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Delay, delayed
    • development
      • intellectual NEC 315.9
  • Disorder - see also Disease
    • development, specific 315.9
      • associated with hyperkinesia 314.1
      • coordination 315.4
      • language 315.31
        • and speech due to hearing loss 315.34
      • learning 315.2
        • arithmetical 315.1
        • reading 315.00
      • mixed 315.5
      • motor coordination 315.4
      • specified type NEC 315.8
      • speech 315.39
        • and language due to hearing loss 315.34
    • learning 315.9
  • Retardation
    • development, developmental, specific (see also Disorder, development, specific) 315.9
      • learning, specific 315.2
        • arithmetical 315.1
        • language (skills) 315.31
          • expressive 315.31
          • mixed receptive-expressive 315.32
        • mathematics 315.1
        • reading 315.00
          • phonological 315.39
        • written expression 315.2
      • motor 315.4

Crosswalk Information

The code 315.9 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
315.9 Right Arrow F81.9 Developmental disorder of scholastic skills, unspecified
F89 Unspecified disorder of psychological development
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
315.00 Developmental reading disorder, unspecified
315.01 Alexia
315.02 Developmental dyslexia
315.09 Other specific developmental reading disorder
315.1 Mathematics disorder
315.2 Other specific developmental learning difficulties
315.31 Expressive language disorder
315.32 Mixed receptive-expressive language disorder
315.34 Speech and language developmental delay due to hearing loss
315.35 Childhood onset fluency disorder
315.39 Other developmental speech or language disorder
315.4 Developmental coordination disorder
315.5 Mixed development disorder
315.8 Other specified delays in development


This page was last updated on: 10/1/2014