ICD-10-CM › O00-O9A › O20-O29 › O26.4 Herpes gestationis › O26.41
Herpes gestationis, first trimester
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Herpes gestationis, first trimester
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from the O20-O29 section Other maternal disorders predominantly related to pregnancy (O20-O29)
Excludes2 - not included here
- maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
- maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Herpesvirus
- Febris, febrile
- Fever > herpetic
- Human > herpesvirus
- Fever > viral hemorrhagic
- Syndrome > acquired immunodeficiency
- Virus, viral > human immunodeficiency
- Syndrome > immunodeficiency > acquired
- Infection, infected, infective > herpes
- Disease, diseased > Castleman > HHV-8-associated
- Infection, infected, infective > herpesvirus, herpesviral
- Herpes, herpesvirus, herpetic > gestational, gestationis
Codes in the same group
| Code | Description | Status |
|---|---|---|
| O26.40 | Herpes gestationis, unspecified trimester | Valid |
| O26.42 | Herpes gestationis, second trimester | Valid |
| O26.43 | Herpes gestationis, third trimester | Valid |