O86.4
✓ Billable
Pyrexia of unknown origin following delivery
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O86.4
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O86.4?
ICD-10-CM code O86.4 represents Pyrexia of unknown origin following delivery. It is a billable diagnosis code in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O86.4 billable?
Yes. O86.4 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is O86.4 in?
O86.4 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O86 category
O86
Other puerperal infections
Non-billable
O86.0
Infection of obstetric surgical wound
Non-billable
O86.1
Other infection of genital tract following delivery
Non-billable
O86.2
Urinary tract infection following delivery
Non-billable
O86.8
Other specified puerperal infections
Non-billable
O86.00
Infection of obstetric surgical wound, unspecified
Billable
O86.01
Infection of obstetric surgical wound, superficial incisional site
Billable
O86.02
Infection of obstetric surgical wound, deep incisional site
Billable
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