| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| icd 9 headache chronic | 1.03 | 0.4 | 4219 | 74 | 22 |
| icd | 0.25 | 0.4 | 9721 | 55 | 3 |
| 9 | 1.31 | 0.8 | 9015 | 82 | 1 |
| headache | 1.08 | 1 | 180 | 67 | 8 |
| chronic | 1.59 | 0.5 | 5246 | 66 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| icd 9 headache chronic | 0.92 | 0.6 | 7560 | 73 |
| icd 9 chronic sinusitis with headache | 1.96 | 0.5 | 4026 | 9 |
| icd 9 headache syndrome | 1.2 | 0.2 | 2331 | 94 |
| icd 9 code unspecified headache | 1.4 | 0.2 | 2473 | 8 |
| icd 9 code for headache not specified | 0.04 | 0.7 | 6540 | 58 |
| headache not specified icd 9 | 0.24 | 0.5 | 1093 | 70 |
| icd code chronic headache | 1.56 | 0.7 | 159 | 56 |
| dx code chronic headache | 1.36 | 0.2 | 4332 | 95 |
