O9A.21 ICD-10-CM Code: Injury, poisoning and certain other consequences of external causes complicating pregnancy
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
O9A.21Injury, poisoning and certain other consequences of external causes complicating pregnancy
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where O9A.21 sits
- 1
Chapter 15
Pregnancy, childbirth and the puerperium (O00-O9A)
- 2
Section
Other obstetric conditions, not elsewhere classified (O94-O9A)
- 3
Category O9A
Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
- 4
Subcategory O9A.2
Injury, poisoning and certain other consequences of external causes complicating pregnancy, childbirth and the puerperium
- 5
Code O9A.21
Injury, poisoning and certain other consequences of external causes complicating pregnancy
More specific choices
Codes under O9A.21
O9A.21 is a non-billable category. Choose the child code that best matches the documented diagnosis.
O9A.211Injury, poisoning and certain other consequences of external causes complicating pregnancy, first trimester
O9A.212Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester
O9A.213Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester
O9A.219Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for O9A.21.
Code first
No “code first” instruction is listed for O9A.21.
Use additional code
No “use additional code” instruction is listed for O9A.21.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for O9A.21.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for O9A.21.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code O9A.21 mean?
O9A.21 is the FY 2027 U.S. ICD-10-CM code for “Injury, poisoning and certain other consequences of external causes complicating pregnancy.”
Is O9A.21 a billable or specific ICD-10-CM code?
No. O9A.21 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is O9A.21 located in ICD-10-CM?
O9A.21 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Other obstetric conditions, not elsewhere classified (O94-O9A) (O94–O9A), under category O9A, Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium and subcategory O9A.2, Injury, poisoning and certain other consequences of external causes complicating pregnancy, childbirth and the puerperium.
What coding notes are listed for O9A.21?
No inclusion terms are listed for O9A.21 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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