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3. Chapter - O00-O9A
4. Section - O10-O16
5. Category - O10
6. O10.4

O10.4 - Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium

• Applicable to Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
• The 2025 edition of ICD10-CM O10.4 became effective on October 1, 2024.
• This is the American ICD10-CM version of O10.4 - other international versions of ICD10 O10.4 may differ.
• O10.4 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• O10.4 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.

Code Additional Code:

• code from I15 to identify the type of secondary hypertension

• Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium

The following codes above O10.4 contain annotation back-references that may be applicable to O10.4:

• Chapter: O00-O9A - Pregnancy, childbirth and the puerperium
• Section: O10-O16 - Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
• Category: O10 - Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.