O99.2 is the authoritative medical code for Clinical Diagnosis. This classification is used in medical billing and clinical recording to specify the clinical criteria for clinical diagnosis (ICD-10-CM O99.2), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code O99.2. A more specific billable subcode must be selected for claims submission. Includes: conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care. Inclusion terms: Conditions in E00-E89. Excludes2 (not included here): diabetes mellitus O24.-; malnutrition O25.-; postpartum thyroiditis O90.5; when the reason for maternal care is that the condition is known or suspected to have affected the fetus O35-O36. Use additional code: code to identify specific condition.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for O99.2 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
Inclusion Terms
Alternative terms the tabular list files under this code.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- diabetes mellitus O24.-
- malnutrition O25.-
- postpartum thyroiditis O90.5
- when the reason for maternal care is that the condition is known or suspected to have affected the fetus O35-O36
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code to identify specific condition
Frequently Asked Questions (FAQ) & Clinical Guidance
Can O99.2 be billed directly?
No. O99.2 (Clinical Diagnosis) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Can O99.2 be reported alongside related conditions?
Per Excludes2 instructions, O99.2 and the following may both be reported when both are present: diabetes mellitus (O24.-); malnutrition (O25.-); postpartum thyroiditis (O90.5); when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36).
Is an additional code needed with O99.2?
Use additional code(s) to specify: code to identify specific condition.
What conditions are included under O99.2?
Clinical Diagnosis includes: Conditions in E00-E89.
Codes in This Family (14)
Official ICD-10-CM classifications in the same code family as O99.2, with their registry titles.
- O99.21 — Obesity complicating pregnancy, childbirth, and the puerperium
- O99.210 — Obesity complicating pregnancy, unspecified trimester
- O99.211 — Obesity complicating pregnancy, first trimester
- O99.212 — Obesity complicating pregnancy, second trimester
- O99.213 — Obesity complicating pregnancy, third trimester
- O99.214 — Obesity complicating childbirth
- O99.215 — Obesity complicating the puerperium
- O99.28 — Clinical Diagnosis
- O99.280 — Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester
- O99.281 — Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester
- O99.282 — Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester
- O99.283 — Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester
- O99.284 — Endocrine, nutritional and metabolic diseases complicating childbirth
- O99.285 — Endocrine, nutritional and metabolic diseases complicating the puerperium
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: