AutoICD API

O11.1

Billable

Pre-existing hypertension w pre-eclampsia, first trimester

Pre-existing hypertension with pre-eclampsia, first trimester

Status

Billable / Specific

Block

O10-O16

Parent Code

O11

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

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

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

UMLS

Frequently Asked Questions

What is ICD-10 code O11.1?

ICD-10-CM code O11.1 represents "Pre-existing hypertension with pre-eclampsia, first trimester". It is a billable/specific code that can be used on a claim.

Is O11.1 a billable code?

Yes, O11.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is O11.1 in?

O11.1 is in Chapter 15: Pregnancy, Childbirth and the Puerperium (codes O00-O9A).

What codes cannot be used with O11.1?

O11.1 has Excludes1 notes indicating codes that cannot be used together with it, including: supervision of normal pregnancy (Z34.-).

Are additional codes required with O11.1?

Yes, when using O11.1 you should also code: code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.; code from O10 to identify the type of hypertension.

What are the UMLS CUIs for O11.1?

O11.1 is linked to 1 UMLS Concept Unique Identifier: C2903555. 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.