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ICD-10/O13

O13 ICD-10-CM Code: Gestational [pregnancy-induced] hypertension without significant proteinuria

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Gestational [pregnancy-induced] hypertension without significant proteinuria is a non-billable ICD-10-CM category code (O13). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for O13 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • gestational hypertension NOS
  • transient hypertension of pregnancy

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Contextual Map

Every relationship of O13 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • O00-O9A — Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A) (O00-O9A) [Hierarchy]
  • O10-O16 — Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium [Hierarchy]

Referenced by Excludes1 notes

  • I10 — Essential (primary) hypertension [Excludes1]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together

Referenced by Excludes2 notes

  • I10-I1A — Hypertensive diseases (I10-I1A) [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together
  • I11 — Hypertensive heart disease [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together
  • I12 — Hypertensive chronic kidney disease [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together
  • I13 — Hypertensive heart and chronic kidney disease [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together
  • I15 — Secondary hypertension [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together
  • I16 — Hypertensive crisis [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together
  • I1A — Other hypertension [Excludes2]: “hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)” · check together

Nearest codes

  • O13.1 — Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester [Sibling]
  • O13.2 — Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester [Sibling]
  • O13.3 — Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester [Sibling]
  • O13.4 — Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth [Sibling]
  • O13.5 — Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium [Sibling]
  • O13.9 — Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester [Sibling]

Referenced by Other Codes

Official ICD-10-CM tabular notes on other codes that name O13 or its code family.

1 Excludes1 notes: I10.

7 Excludes2 notes: I10-I1A, I11, I12, I13, I15, I16, I1A.

Frequently Asked Questions (FAQ) & Clinical Guidance

Can O13 be billed directly?

No. O13 (Gestational [pregnancy-induced] hypertension without significant proteinuria) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O13 in its code family, with their registry titles.

  • O13.1 — Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
  • O13.2 — Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
  • O13.3 — Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
  • O13.4 — Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth
  • O13.5 — Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium
  • O13.9 — Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester