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ICD-10-CM 2027 diagnosis code

O14Pre-eclampsia

Not billable — use a more specific code

O14 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O14

O14 is the ICD-10-CM diagnosis code for pre-eclampsia. It belongs to block O10-O16 (edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: O14.0 (pre-eclampsia), O14.1 (pre-eclampsia), O14.2 (syndrome) and O14.9 (pre-eclampsia).

Don't report O14 together with the conditions in its Excludes1 note: pre-existing hypertension with pre-eclampsia (O11).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under O14

Coding notes

Excludes1Not coded here — never report together with this code
  • pre-existing hypertension with pre-eclampsia (O11)

Notes that apply from higher levels

Instructions written at a parent level also apply to O14.

Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.

Codes whose notes reference O14

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about O14

Is O14 billable?

No. O14 is a header code. Report one of its more specific subcodes instead.