O16 Unspecified maternal hypertension

Non-billable header with 6 child codes.

Codes under O16

• O16.1 Unspecified maternal hypertension, first trimester
• O16.2 Unspecified maternal hypertension, second trimester
• O16.3 Unspecified maternal hypertension, third trimester
• O16.4 Unspecified maternal hypertension, complicating childbirth
• O16.5 Unspecified maternal hypertension, complicating the puerperium
• O16.9 Unspecified maternal hypertension, unspecified trimester

Code annotations containing back-references to O16

Back-references to O16

• Type 1 Excludes: I10 Essential (primary) hypertension ("hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)")
• Type 2 Excludes: O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium ("hypertensive disorders (O10-O16)")

Back-references to O16

• Type 1 Excludes: I10 Essential (primary) hypertension ("hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)")
• Type 2 Excludes: O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium ("hypertensive disorders (O10-O16)")

Diagnosis Index entries for O16

• Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) › complicating › pregnancy
• Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) › maternal

Nearby codes

• O16 Unspecified maternal hypertension (this code)
• O16.1 Unspecified maternal hypertension, first trimester
• O16.2 Unspecified maternal hypertension, second trimester
• O16.3 Unspecified maternal hypertension, third trimester
• O16.4 Unspecified maternal hypertension, complicating childbirth
• O16.5 Unspecified maternal hypertension, complicating the puerperium