O9A.213

Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 6 never code together

O9A.2code

Excludes2

physical, sexual and psychological abuse complicating pregnancy, childbirth and the puerperium (O9A.3-, O9A.4-, O9A.5-)O9A.3-O9A.4-O9A.5-

O00-O9Achapter

Excludes1

supervision of normal pregnancy (Z34.-)Z34.-

Excludes2

mental and behavioral disorders associated with the puerperium (F53.-)F53.-
obstetrical tetanus (A34)A34
postpartum necrosis of pituitary gland (E23.0)E23.0
puerperal osteomalacia (M83.0)M83.0

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 9

O9A.2code

Inclusion terms

Conditions in S00-T88, except T74 and T76S00-T88 T74 T76

Use additional code

code(s) to identify the injury or poisoning

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 1

Pregnancy (single) (uterine) Z33.1
- complicated by (care of) (management affected by)
  - injury or poisoning (conditions in S00-T88) O9A.21
  - overdose, drug O9A.21
  - poisoning O9A.21

Alongside this code 3 same parent — O9A.21

O9A.211 Inj/poisn/oth conseq of external causes comp preg, first tri O9A.212 Inj/poisn/oth conseq of extrn causes comp preg, second tri O9A.219 Inj/poisn/oth conseq of external causes comp preg, unsp tri

Medications 5

34 Pregnancy Trimester, Third drugs 9 Pregnancy Trimester, First drugs 5 Pregnancy Trimester, Second drugs 1315 Female Urogenital Diseases and Pregnancy Complications drugs 2 Chemical and Drug Induced Liver Injury drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: O9A.21
Block: O94-O9A
Siblings: 3

Present FY2024–FY2027.