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)
- 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.
Also Known As / Clinical Terms
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
Frequently Asked Questions
What is ICD-10 code O16.9?
ICD-10-CM code O16.9 represents "Unspecified maternal hypertension, unspecified trimester". It 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 you should also code: 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.
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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.