O99.0 — Anemia complicating pregnancy, childbirth and the puerperium
Is O99.0 billable?
No — O99.0 is a non-billable header code. O99.0 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 6 billable codes beneath O99.0.
Billable codes under this header
O99.0 at a glance
| Code | O99.0 |
|---|---|
| Description | Anemia complicating pregnancy, childbirth and the puerperium |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with O99.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Inclusion terms
Alternative wording in documentation that is classified to O99.0.
- Conditions in D50-D64
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O99.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- supervision of normal pregnancy (Z34.-)
Use additional code — inherited from Chapter 15
Report an additional code alongside O99.0 to fully describe the condition. O99.0 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Use additional code — inherited from O99
Report an additional code alongside O99.0 to fully describe the condition. O99.0 is sequenced first.
- code to identify specific condition
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O99.0, but a patient may have both at the same time. When documentation supports it, O99.0 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O99
The conditions below are not part of O99.0, but a patient may have both at the same time. When documentation supports it, O99.0 and the excluded code may both be reported.
- when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)
What codes fall under O99.0? (3)
How long has O99.0 existed?
O99.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the O99 family? (8)
- O99.1Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperiumnot billable
- O99.2Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperiumnot billable
- O99.3Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperiumnot billable
- O99.4Diseases of the circulatory system complicating pregnancy, childbirth and the puerperiumnot billable
- O99.5Diseases of the respiratory system complicating pregnancy, childbirth and the puerperiumnot billable
- O99.6Diseases of the digestive system complicating pregnancy, childbirth and the puerperiumnot billable
- O99.7Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperiumnot billable
- O99.8Other specified diseases and conditions complicating pregnancy, childbirth and the puerperiumnot billable