O99.28 — Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium
Is O99.28 billable?
No — O99.28 is a non-billable header code. O99.28 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 O99.28.
Billable codes under this header
- O99.280Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester
- O99.281Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester
- O99.282Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester
- O99.283Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester
- O99.284Endocrine, nutritional and metabolic diseases complicating childbirth
- O99.285Endocrine, nutritional and metabolic diseases complicating the puerperium
O99.28 at a glance
| Code | O99.28 |
|---|---|
| Description | Other endocrine, nutritional and metabolic diseases 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 |
How is O99.28 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O99.28. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Pregnancy › complicated by › endocrine diseases NEC (single) (uterine)
- Pregnancy › complicated by › metabolic disorders (single) (uterine)
- Pregnancy › complicated by › nutritional diseases NEC (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O99.28 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 O99.28 to fully describe the condition. O99.28 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 O99.28 to fully describe the condition. O99.28 is sequenced first.
- code to identify specific condition
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O99.28, but a patient may have both at the same time. When documentation supports it, O99.28 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O99
The conditions below are not part of O99.28, but a patient may have both at the same time. When documentation supports it, O99.28 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)
Excludes2 — not included here — inherited from O99.2
The conditions below are not part of O99.28, but a patient may have both at the same time. When documentation supports it, O99.28 and the excluded code may both be reported.
What codes fall under O99.28? (6)
- O99.280Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester
- O99.281Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester
- O99.282Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester
- O99.283Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester
- O99.284Endocrine, nutritional and metabolic diseases complicating childbirth
- O99.285Endocrine, nutritional and metabolic diseases complicating the puerperium
How long has O99.28 existed?
O99.28 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.