O9A.1
Non-billableMalignant neoplasm compl preg/chldbrth
Malignant neoplasm complicating pregnancy, childbirth and the puerperium
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)
- supervision of normal pregnancy (Z34.-)
Excludes 2
Conditions not included here, but the patient may have both
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 to identify neoplasm
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code O9A.1?
ICD-10-CM code O9A.1 represents "Malignant neoplasm complicating pregnancy, childbirth and the puerperium". It is a non-billable header code — use a more specific child code for billing purposes.
Is O9A.1 a billable code?
No, O9A.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under O9A.1.
What chapter is O9A.1 in?
O9A.1 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O9A.1?
O9A.1 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).
What are the subcategories under O9A.1?
O9A.1 has 3 child codes, including: O9A.11 (Malignant neoplasm complicating pregnancy), O9A.12 (Malignant neoplasm complicating childbirth), O9A.13 (Malignant neoplasm complicating the puerperium).
Are additional codes required with O9A.1?
Yes, when using O9A.1 you should also code: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.; code to identify neoplasm.
What are the UMLS CUIs for O9A.1?
O9A.1 is linked to 2 UMLS Concept Unique Identifiers: C3264527, C2909733. 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.