##    X root    group               subgroup                          subsubgroup
## 1  5 root Vascular        Cardiac Disease                Hypertensive diseases
## 2  2 root Vascular        Cardiac Disease              Ischemic heart diseases
## 3  3 root Vascular        Cardiac Disease         Other forms of heart disease
## 4 11 root   Cancer Diseases of peritoneum                                     
## 5 12 root   Cancer    Malignant neoplasms independent (primary) multiple sites
## 6 13 root   Cancer    Malignant neoplasms                               breast
##   value                     pathString
## 1     7 world/Social/Social Fuctioning
## 2     7            world/Social/Family
## 3     7            world/Social/Family
## 4     1          world/Psychological/d
## 5    16          world/Psychological/d
## 6    16          world/Psychological/e