O99.21
⚠ Non-billable (Header)Obesity complicating pregnancy, childbirth, and the puerperium
Pregnancy, childbirth and the puerperium (O00-O9A)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
inheritedRules inherited from parent codes.
📋 Code Instructions
direct- • code to identify the type of obesity (E66.-)
📋 Code Instructions
inherited- • code to identify specific condition
Child Codes (6)
Clinical Description
ICD-10-CM code O99.21 represents obesity complicating pregnancy, childbirth, and the puerperium. This code falls under the Pregnancy, childbirth and the puerperium (O00-O9A) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 6-character code at the 5th level of specificity. There are 6 more specific child codes under O99.21.
Frequently Asked Questions
What is ICD-10 code O99.21?
ICD-10-CM code O99.21 is "Obesity complicating pregnancy, childbirth, and the puerperium". It belongs to the category: Pregnancy, childbirth and the puerperium (O00-O9A).
Is O99.21 a billable ICD-10 code?
No, O99.21 is a non-billable header code. A more specific child code must be used for billing.
Can O99.21 be coded with other codes?
O99.21 has 4 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in O99.2
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)