---
kind: "section"
citation: "38 C.F.R. § 4.127"
title: "38"
number: "4.127"
heading: "Intellectual disability (intellectual developmental disorder) and personality disorders."
url: "https://uscodex.org/cfr/38/4.127"
---

# §4.127. Intellectual disability (intellectual developmental disorder) and personality disorders.


Intellectual disability (intellectual developmental disorder) and personality disorders are not diseases or injuries for compensation purposes, and, except as provided in [§ 3.310(a)](/cfr/38/3.310.md?p=a) of this chapter, disability resulting from them may not be service-connected. However, disability resulting from a mental disorder that is superimposed upon intellectual disability (intellectual developmental disorder) or a personality disorder may be service-connected.


## Notes

### Amendments

[79 FR 45100, Aug. 4, 2014]

### Authority

Authority: 38 U.S.C. 1155, unless otherwise noted.

### Source

Source: 29 FR 6718, May 22, 1964, unless otherwise noted.

### Amendments

[79 FR 45100, Aug. 4, 2014]