Table 1

Percentage Distribution of the Six Most Frequent Primary ICD9-CM Codes for CPT Code A2000 (Manual Manipulation of the Spine to Correct a Subluxation), by Calendar Year.

ICD9-CM Code
Description
1992
1993
1994
1995
1996

839
Other, multiple, and ill-defined dislocations
33.9
39.2
41.5
45.5
38.1
739
Nonallopathic lesions, not elsewhere classified
21.3
26.1
20.0
19.6
34.7
724
Other and unspecified disorders of back
16.0
13.1
15.3
10.4
11.9
723
Other disorders of cervical region
10.8
6.6
5.9
12.1
2.2b
847
Sprains and strains of other and unspecified parts of back
5.6
4.3
3.1
5.3
3.3
722
Intervertebral disc disorders
4.7
3.4a
5.6
1.5
3.1

     Cumulative Percentage
92.2
92.7
91.3
94.3
93.2

aCode 729 was slightly more frequent (3.5%).

bCode 729 was slightly more frequent (3.1%), as was code 721 (2.3%).

Cells with bold-faced entries indicate divergence from the 1992 frequency pattern.

Wolinsky et al. Chiropractic & Osteopathy 2007 15:12   doi:10.1186/1746-1340-15-12