Unspecified maternal hypertension
Non-billable header
O16 is a non-billable header code. Use one of the more specific codes below.
Inclusion terms
Includes
- Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Note: Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- Note: 1st trimester- less than 14 weeks 0 days
- Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- Note: 3rd trimester- 28 weeks 0 days until delivery
Excludes1
Not coded here — never report together with this code.
- supervision of normal pregnancy (Z34.-)
Excludes2
Not included here — may be reported together when both conditions exist.
Use additional code
Add a code to identify the following, if applicable.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Also known as
- Hypertension, hypertensive, complicating pregnancy
- Hypertension, hypertensive, maternal
More specific codes O16
- O16.1Unspecified maternal hypertension, first trimesterBillable
- O16.2Unspecified maternal hypertension, second trimesterBillable
- O16.3Unspecified maternal hypertension, third trimesterBillable
- O16.4Unspecified maternal hypertension, complicating childbirthBillable
- O16.5Unspecified maternal hypertension, complicating the puerperiumBillable
- O16.9Unspecified maternal hypertension, unspecified trimesterBillable
Related codes
- O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperiumHeader
- O11Pre-existing hypertension with pre-eclampsiaHeader
- O12Gestational [pregnancy-induced] edema and proteinuria without hypertensionHeader
- O13Gestational [pregnancy-induced] hypertension without significant proteinuriaHeader
- O14Pre-eclampsiaHeader
- O15EclampsiaHeader