Table 2.
Frequent comorbidities associated with functional dyspepsia.
| Diagnosis code | N | % | |
|---|---|---|---|
| M (diseases of the musculoskeletal system and connective tissue) | M545 (low back pain) | 3,225,059 | 26.64 |
| M791 (myalgia) | 1,390,267 | 11.48 | |
| M626 (muscle strain) | 1,118,574 | 9.24 | |
| M255 (pain in joint) | 870,202 | 7.19 | |
| M544 (lumbago with sciatica) | 692,076 | 5.72 | |
| Subtotal | 12,420,825 | — | |
|
| |||
| R (symptoms, signs, and abnormal clinical and laboratory findings, not elsewhere classified) | R101 (pain localized to the upper abdomen) | 796,848 | 33.10 |
| R51 (headache) | 360,327 | 14.97 | |
| R42 (dizziness and giddiness) | 291,311 | 12.10 | |
| R104 (other and unspecified abdominal pain) | 223,702 | 9.29 | |
| R05 (cough) | 116,030 | 4.82 | |
| Subtotal | 2,479,230 | — | |
|
| |||
| S (injury, poisoning, and other consequences from external causes) | S335 (sprain and strain of the lumbar spine) | 435,071 | 20.59 |
| S934 (sprain and strain of the ankle) | 206,398 | 9.77 | |
| S836 (sprain and strain of other and unspecified parts of the knee) | 205,873 | 9.74 | |
| S337 (sprain and strain of other and unspecified parts of lumbar spine and pelvis) | 203,042 | 9.61 | |
| S434 (sprain and strain of the shoulder joint) | 198,715 | 9.40 | |
| Subtotal | 2,137,678 | — | |
|
| |||
| U (codes for special purposes) | U303 (neck-stiffness disorder) | 215,162 | 12.49 |
| U680 (spleen qi-deficiency pattern) | 134,750 | 7.82 | |
| U234 (sequela of wind-stroke disorder) | 115,626 | 6.71 | |
| U238 (joint impediment disorders) | 96,877 | 5.62 | |
| U280 (Food-retention disorder) | 90,571 | 5.26 | |
| Subtotal | 1,757,326 | — | |
|
| |||
| G (diseases of the nervous system) | G442 (tension-type headache) | 182,199 | 19.00 |
| G439 (migraine, unspecified) | 132,424 | 13.81 | |
| G470 (disorders of initiating and maintaining sleep (insomnias)) | 125,029 | 13.04 | |
| G510 (Bell's palsy) | 89,117 | 9.29 | |
| G438 (other migraine) | 56,505 | 5.89 | |
| Subtotal | 977,695 | — | |
|
| |||
| J (diseases of the respiratory system) | J00 (acute nasopharyngitis (common cold)) | 549,195 | 70.09 |
| J310 (chronic rhinitis) | 56,617 | 7.23 | |
| J069 (acute upper respiratory infection, unspecified) | 29,135 | 3.72 | |
| J304 (allergic rhinitis, unspecified) | 27,911 | 3.56 | |
| J303 (other allergic rhinitis) | 16,310 | 2.08 | |
| Subtotal | 847,865 | — | |
|
| |||
| K (diseases of the digestive system) | K590 (constipation) | 99,555 | 27.43 |
| K591 (functional diarrhea) | 60,018 | 16.54 | |
| K297 (gastritis, unspecified) | 31,770 | 8.75 | |
| K210 (gastroesophageal reflux disease with esophagitis) | 22,201 | 6.12 | |
| K076 (temporomandibular joint disorders) | 17,004 | 4.69 | |
| Subtotal | 380,691 | — | |