O99.21

O99.21: Obesity complicating pregnancy, childbirth, and the puerperium

Non-billable headerICD-10-CM

O99.21 is a non-billable header ICD-10-CM code for obesity complicating pregnancy, childbirth, and the puerperium. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

code to identify the type of obesity (E66.-)

Excludes2 inherited from the categories above O99.21

Not part of this code, but both may be coded when both are present.

Written on O99.2: Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium

diabetes mellitus (O24.-)
malnutrition (O25.-)
postpartum thyroiditis (O90.5)

Written on O99: Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O99.21

6 child codes. Green means billable.

Other codes under O99.2

O99.28Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium