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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: J Pediatr. 2016 Nov 3;181:37–41.e1. doi: 10.1016/j.jpeds.2016.10.033

Table 1.

Online: Gestational age ICD-9-CM codes

Classification ICD-9-CM ICD-9-CM Short description
25 to 26 weeks 765.23 25-26 completed weeks of gestation
27 to 28 weeks 765.24 27-28 completed weeks of gestation
29 to 30 weeks 765.25 29-30 completed weeks of gestation
31 to 32 weeks 765.26 31-32 completed weeks of gestation