O14.2
HELLP syndrome
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 6 never code together
O00-O9Achapter
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 8
O14.2code
Inclusion terms
- Severe pre-eclampsia with hemolysis, elevated liver enzymes and low platelet count (HELLP)
O00-O9Achapter
Notes
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- 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)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Use additional code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.Z3A
Index entries leading here 5
- Pregnancy (single) (uterine) Z33.1
- Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
- Syndrome — see also Disease
- HELLP (hemolysis, elevated liver enzymes and low platelet count) O14.2
- HELLP syndrome (hemolysis, elevated liver enzymes and low platelet count) O14.2
- Pre-eclampsia O14.9
Alongside this code 3 same parent — O14
Subordinate codes 5
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.