Table 3 Diagnostic codes (ICD-10-AM) recorded for maternal readmission in the 12-month period following delivery
ICD-10-AM Grouping Name | Codes | Cohort 1 n = 5191 | Cohort 2 n = 99,242 | P value | |
|---|---|---|---|---|---|
Certain infectious & parasitic diseases | A00-B99 | 2.34% | 2.72% | 0.02 | |
Neoplasms | Malignant neoplasms | C00-C96 | 1.58% | 1.33% | ≤0.001 |
In situ neoplasms | D00-D09 | 0.31% | 0.47% | 0.008 | |
Benign neoplasms | D10-D36 | 1.03% | 0.89% | 0.013 | |
Neoplasms of uncertain or unknown behaviour | D37-D48 | 1.27% | 1.22% | 0.2 | |
Diseases of the blood & certain blood forming organs & certain disorders involving the immune mechanism | D50-D89 | 0.68% | 0.84% | 0.07 | |
Endocrine, nutritional & metabolic diseases | E00-E89 | 1.26% | 1.40% | 0.36 | |
Mental & behavioural disorders | F00-F99 | 8.43% | 4.18% | ≤0.001 | |
Diseases of the nervous system | G00-G99 | 0.97% | 0.93% | 0.3 | |
Diseases of the eye & adnexa | H00-H59 | 0.27% | 0.30% | 0.85 | |
Diseases of the ear & mastoid process | H60-H95 | 0.09% | 0.17% | 0.03 | |
Diseases of the circulatory process | I00-I99 | 1.59% | 1.65% | 0.94 | |
Diseases of the respiratory system | J00-J99 | 1.40% | 1.61% | 0.14 | |
Diseases of the digestive system | K00-K93 | 7.82% | 8.07% | 0.63 | |
Diseases of the skin & subcutaneous tissue | L00-L99 | 0.93% | 1.01% | 0.68 | |
Diseases of the musculoskeletal system & connective tissue | M00-M99 | 1.63% | 1.38% | ≤0.001 | |
Diseases of the genito-urinary system | N00-N99 | 6.30% | 6.33% | 0.15 | |
Pregnancy, childbirth & the puerperium | O00-O99 | 19.38% | 20.87% | ≤0.001 | |
Congenital malformations & chromosomal abnormalities | Q00-Q99 | 0.30% | 0.27% | 0.32 | |
Symptoms, signs & abnormal findings, clinical & laboratory findings not elsewhere classified | R00-R99 | 4.65% | 4.56% | 0.06 | |
Injury, poisoning & certain other consequences of external causes | S00-T98 | 2.47% | 2.74% | 0.22 | |
External cause of morbidity & mortality | U50-Y98 | 6.44% | 6.51% | 0.22 | |