O16.9
BillableUnspecified maternal hypertension, unspecified trimester
Unspecified maternal hypertension, unspecified trimester
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
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.
Related Codes(5)
O16.1Unspecified maternal hypertension, first trimester
O16.2Unspecified maternal hypertension, second trimester
O16.3Unspecified maternal hypertension, third trimester
O16.4Unspecified maternal hypertension, complicating childbirth
O16.5Unspecified maternal hypertension, comp the puerperium
Also Known As / Clinical Terms(22)
SNOMED CT
- Chronic hypertension in obstetric context8762007
- Chronic hypertension complicating AND/OR reason for care during pregnancy37618003
- Essential hypertension in obstetric context72022006
- Hypertension AND/OR vomiting complicating pregnancy childbirth AND/OR puerperium106005003
- Hypertension complicating pregnancy, childbirth and the puerperium198941007
- Hypertension in the obstetric context367390009
- Fetal disorder due to maternal hypertension1003728008
- Foetal disorder due to maternal hypertension1003728008
- Hypertension complicating pregnancy82771000119102
- Hypertension complicating pregnancy, childbirth and the puerperium, antepartum541000119105
UMLS
Clinical Terms
- Hypertension AND/OR vomiting complicating pregnancy childbirth AND/OR puerperium
- Hypertension complicating pregnancy, childbirth and the puerperium
- Hypertension complicating pregnancy, childbirth and the puerperium, antepartum
- Hypertension complicating pregnancy
- Chronic hypertension complicating AND/OR reason for care during pregnancy
- Chronic hypertension in obstetric context
- Hypertension in the obstetric context
- Foetal disorder due to maternal hypertension
- Essential hypertension in obstetric context
- Fetal disorder due to maternal hypertension
Frequently Asked Questions
What is the ICD-10 code for unspecified maternal hypertension, unspecified trimester?
The ICD-10-CM code for unspecified maternal hypertension, unspecified trimester is O16.9. The full clinical description is "Unspecified maternal hypertension, unspecified trimester". O16.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code O16.9 mean?
ICD-10-CM code O16.9 represents “Unspecified maternal hypertension, unspecified trimester”. It is classified under Chapter 15: Pregnancy, Childbirth and the Puerperium and is a billable/specific code that can be used on a claim.
Is O16.9 a billable code?
Yes, O16.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is O16.9 in?
O16.9 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O16.9?
O16.9 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).
Are additional codes required with O16.9?
Yes, when using O16.9, also report: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known..
What SNOMED CT codes does O16.9 map to?
O16.9 maps to 9 SNOMED CT concepts: 37618003, 8762007, 72022006, 1003728008, 106005003, and 4 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for O16.9?
O16.9 is linked to 1 UMLS Concept Unique Identifier: C0495183. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does O16.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified maternal hypertension, unspecified trimester affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of O16.9?
There is no direct ICD-11 mapping available for O16.9 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.