ICD-9-CM Codes ICD-9-PCS Codes

648.13 - Thyroid dysfunction of mother, antepartum condition or complication

GEM Conversion to ICD-10 CM

O99.281

Fs: 10000 – Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester

O99.282

Fs: 10000 – Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester

O99.283

Fs: 10000 – Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester

Sibling Codes

648.10

Thyroid dysfunction of mother, unspecified as to episode of care or not applicable

648.11

Thyroid dysfunction of mother, delivered, with or without mention of antepartum condition

648.12

Thyroid dysfunction of mother, delivered, with mention of postpartum complication

648.13

Thyroid dysfunction of mother, antepartum condition or complication

648.14

Thyroid dysfunction of mother, postpartum condition or complication