Intellectual Disabilities (317-319) ICD-9-CM
The 317-319 section covered intellectual disabilities with 5 legacy diagnosis codes across 3 code blocks. The info icons preview the first codes of each block, and every code page carries its ICD-10-CM crosswalk.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Code Blocks in This Section 3 blocks · 5 codes
| Range | Block | Codes |
|---|---|---|
| 317 | 317 Mild intellectual disabilities | 1 |
| 318.0-318.2 | 318 Other specified intellectual disabilities | 3 |
| 319 | 319 Unspecified intellectual disabilities | 1 |
The info icon previews what each row contains.
Questions About This Page
How many codes are in the 317-319 section?
The 317-319 section contains 5 legacy diagnosis codes across 3 code blocks in the final ICD-9-CM release.
Can I still use these codes on claims?
No. ICD-9-CM was retired on October 1, 2015. To code intellectual disabilities today, use the current ICD-10-CM codes: every legacy code page in this range links its official replacement, and the ICD-9 / ICD-10 converter translates codes in both directions.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
