O43.21
Non-billablePlacenta accreta
Placenta accreta
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- mental and behavioral disorders associated with the puerperium (F53.-)
- obstetrical tetanus (A34)
- postpartum necrosis of pituitary gland (E23.0)
- puerperal osteomalacia (M83.0)
- 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.-)
Use Additional Code
Additional codes that should follow this code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Code Also
A second code may be required; sequencing depends on circumstances
- associated third stage postpartum hemorrhage, if applicable (O72.0)
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code O43.21?
ICD-10-CM code O43.21 represents "Placenta accreta". It is a non-billable header code — use a more specific child code for billing purposes.
Is O43.21 a billable code?
No, O43.21 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under O43.21.
What chapter is O43.21 in?
O43.21 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O43.21?
O43.21 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-); retained placenta (O73.-).
What are the subcategories under O43.21?
O43.21 has 4 child codes, including: O43.211 (Placenta accreta, first trimester), O43.212 (Placenta accreta, second trimester), O43.213 (Placenta accreta, third trimester), O43.219 (Placenta accreta, unspecified trimester).
Are additional codes required with O43.21?
Yes, when using O43.21 you should also code: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known..
What are the UMLS CUIs for O43.21?
O43.21 is linked to 1 UMLS Concept Unique Identifier: C0032044. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.