631.0
Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy
The ICD-9 code for inappropriate change in quantitative human chorionic gonadotropin (hcg) in early pregnancy is 631.0.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 631.0 →