O86.21 – Infection of kidney following delivery

ICD-10-CM 2027 diagnosis code · Complications predominantly related to the puerperium

Billable code

ICD-10-CM code O86.21

Code: O86.21 (claims format: O8621)
Description: Infection of kidney following delivery
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O85-O92 Complications predominantly related to the puerperium
Parent codes: O86 › O86.2

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

O86 – Other puerperal infections

Excludes2 (not included here):

infection during labor (O75.3)
obstetrical tetanus (A34)

Use additional code:

code (B95-B97), to identify infectious agent

Block O85-O92

Excludes2 (not included here):

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
puerperal osteomalacia (M83.0)

Index terms for O86.21

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in O86.2

Frequently asked questions

What is ICD-10 code O86.21?

O86.21 is the ICD-10-CM code for infection of kidney following delivery, in the block O85-O92 (Complications predominantly related to the puerperium).

Is O86.21 a billable code?

Yes. O86.21 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O86.21 belong to?

It belongs to category O86 – Other puerperal infections.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.