O26.4
⚠ Non-billable
Herpes gestationis
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O26.4
System
ICD-10-CM
Billable
No — use specific code
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 O26.4?
ICD-10-CM code O26.4 represents Herpes gestationis. It is a non-billable header code requiring a more specific subcategory in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O26.4 billable?
No. O26.4 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is O26.4 in?
O26.4 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O26 category
O26
Maternal care for other conditions predominantly related to pregnancy
Non-billable
O26.0
Excessive weight gain in pregnancy
Non-billable
O26.1
Low weight gain in pregnancy
Non-billable
O26.2
Pregnancy care for patient with recurrent pregnancy loss
Non-billable
O26.3
Retained intrauterine contraceptive device in pregnancy
Non-billable
O26.5
Maternal hypotension syndrome
Non-billable
O26.6
Liver and biliary tract disorders in pregnancy, childbirth and the puerperium
Non-billable
O26.7
Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium
Non-billable
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