ICD-10-CM › O00-O9A › O30-O48 › O43.02 Fetus-to-fetus placental... › O43.021
Fetus-to-fetus placental transfusion syndrome, 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 Fetus-to-fetus placental transfusion syndrome, 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 O43 Placental disorders
Excludes2 - not included here
- maternal care for poor fetal growth due to placental insufficiency (O36.5-)
- placenta previa (O44.-)
- placental polyp (O90.89)
- placentitis (O41.14-)
- premature separation of placenta [abruptio placentae] (O45.-)
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.
- Cicatrix
- Sialorrhea
- Anteflexion
- Itch, itching
- Pinpoint > os
- Stricture > vagina
- Anteversion > cervix
- Stricture > os uteri
- Pregnancy > high-risk
- Supervision > pregnancy
- Disease, diseased > renal
- Occlusion, occluded > cervix
- Pregnancy > normal > high-risk
- Stricture > uterus, uterine > os
- Syndrome > placental transfusion
- Supervision > high-risk pregnancy
- Pregnancy > examination > high-risk
- Occlusion, occluded > cervical canal
- Stenosis, stenotic > endocervical os
- Encounter > pregnancy > supervision of
- Pregnancy > prenatal care only > high-risk
- Contraction, contracture, contracted > cervix
- Pregnancy > complicated by > previous history of
- Contraction, contracture, contracted > internal os
- Prediabetes, prediabetic > complicating > pregnancy
- Necrosis, necrotic > kidney > tubular > complicating > pregnancy
- Pregnancy > complicated by > placental transfusion syndromes > fetus to fetus
Codes in the same group
| Code | Description | Status |
|---|---|---|
| O43.022 | Fetus-to-fetus placental transfusion syndrome, second trimester | Valid |
| O43.023 | Fetus-to-fetus placental transfusion syndrome, third trimester | Valid |
| O43.029 | Fetus-to-fetus placental transfusion syndrome, unspecified trimester | Valid |