O11.9
BillablePre-existing hypertension with pre-eclampsia, unsp trimester
Pre-existing hypertension with pre-eclampsia, unspecified trimester
Coding Notes
Includes
Conditions included under this code
- conditions in O10 complicated by pre-eclampsia
- pre-eclampsia superimposed pre-existing hypertension
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 from O10 to identify the type of hypertension
Also Known As / Clinical Terms
SNOMED CT
- PET - Superimposed pre-eclamptic toxaemia67359005
- PET - Superimposed pre-eclamptic toxemia67359005
- PIH - Superimposed pregnancy-induced hypertension67359005
- Pre-eclampsia added to pre-existing hypertension67359005
- Superimposed pre-eclampsia67359005
- Pre-eclampsia or eclampsia with pre-existing hypertension198997005
- EPH - Edema, proteinuria and hypertension of pregnancy398254007
- EPH - Oedema, proteinuria and hypertension of pregnancy398254007
- PE - Pre-eclampsia398254007
- PET - Pre-eclamptic toxaemia398254007
- PET - Pre-eclamptic toxemia398254007
- Pre-eclampsia398254007
- Pre-eclamptic toxaemia398254007
- Pre-eclamptic toxemia398254007
- Preeclampsia398254007
- Proteinuric hypertension of pregnancy398254007
- Toxaemia of pregnancy398254007
- Toxemia of pregnancy398254007
Frequently Asked Questions
What is ICD-10 code O11.9?
ICD-10-CM code O11.9 represents "Pre-existing hypertension with pre-eclampsia, unspecified trimester". It is a billable/specific code that can be used on a claim.
Is O11.9 a billable code?
Yes, O11.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is O11.9 in?
O11.9 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).
What codes cannot be used with O11.9?
O11.9 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).
Are additional codes required with O11.9?
Yes, when using O11.9 you should also code: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.; code from O10 to identify the type of hypertension.
What SNOMED CT codes does O11.9 map to?
O11.9 maps to 3 SNOMED CT concepts: 398254007, 67359005, 198997005. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for O11.9?
O11.9 is linked to 1 UMLS Concept Unique Identifier: C2903558. 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.