Table 5 Characterising uncertainty of back pain-specific invoices by comparing median of back pain invoices and distribution and frequency of listed co-diagnoses at baseline and follow-up period

Median

10

9

8

8

M40-54 Diagnosis alone

33.2 %

27.4 %

31.1 %

27.6 %

with other Diagnosis

66.8 %

72.6 %

68.9 %

72.4 %

Rank 1 ICD Group (%)

M (25 %)

M (25 %)

M (21 %)

M (23 %)

Rank 2 ICD Group (%)

E (14%)

E (15 %)

E (11 %)

E (12 %)

Rank 3 ICD Group (%)

I (8%)

R (9 %)

R (10 %)

R (11%)

Rank 4 ICD Group (%)

G (8 %)

I (8%)

K (10 %)

K (10 %)

Rank 5 ICD Group (%)

R (8 %)

F (8 %)

I (9 %)

I (10 %)