ICD-10-CM · Chapter 15 · O00–O9A
O16.4
Unspecified maternal hypertension, complicating childbirth
Pregnancy, childbirth and the puerperium
Quick facts
- Code
- O16.4
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 15 — Pregnancy, childbirth and the puerperium
- Category
- O16 — Unspecified maternal hypertension
- Specificity
- 4 characters
How coders use this code
ICD-10-CM O16.4 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of unspecified maternal hypertension, complicating childbirth. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in O16
- O16Unspecified maternal hypertension
- O16.1Unspecified maternal hypertension, first trimester
- O16.2Unspecified maternal hypertension, second trimester
- O16.3Unspecified maternal hypertension, third trimester
- O16.5Unspecified maternal hypertension, complicating the puerperium
- O16.9Unspecified maternal hypertension, unspecified trimester
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