ICD-10-CM · Chapter 15 · O00–O9A
O10.9
Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
Pregnancy, childbirth and the puerperium
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- O10.9
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 15 — Pregnancy, childbirth and the puerperium
- Category
- O10 — Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
- Specificity
- 4 characters
How coders use this code
ICD-10-CM O10.9 is a category (header) for unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in O10
- O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
- O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
- O10.01Pre-existing essential hypertension complicating pregnancy
- O10.011Pre-existing essential hypertension complicating pregnancy, first trimester
- O10.012Pre-existing essential hypertension complicating pregnancy, second trimester
- O10.013Pre-existing essential hypertension complicating pregnancy, third trimester
- O10.019Pre-existing essential hypertension complicating pregnancy, unspecified trimester
- O10.02Pre-existing essential hypertension complicating childbirth
- O10.03Pre-existing essential hypertension complicating the puerperium
- O10.1Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium
- O10.11Pre-existing hypertensive heart disease complicating pregnancy
- O10.111Pre-existing hypertensive heart disease complicating pregnancy, first trimester
- O10.112Pre-existing hypertensive heart disease complicating pregnancy, second trimester
- O10.113Pre-existing hypertensive heart disease complicating pregnancy, third trimester
- O10.119Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester
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