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O24 ICD-10-CM Code: Diabetes mellitus in pregnancy, childbirth, and the puerperium

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

Official Registry Overview & Definition

Diabetes mellitus in pregnancy, childbirth, and the puerperium is a non-billable ICD-10-CM category code (O24). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for O24 in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Frequently Compared Codes

The official Excludes notes on O24 name these codes. Each comparison page covers when the two can — or must not — be reported together.

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.

Relationships & Classification

Other codes that name O24 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

1 Excludes1 notes: R73.

1 Excludes2 notes: O99.2.

Contextual Map

Every relationship of O24 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]
  • O20-O29 — Other maternal disorders predominantly related to pregnancy [Hierarchy]

Excludes2

  • O30 — Multiple gestation [Excludes2]: “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)” · check together
  • O48 — Late pregnancy [Excludes2]: “maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)” · check together
  • O98 — Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium [Excludes2]: “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)” · check together
  • O99 — Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium [Excludes2]: “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)” · check together

Referenced by Excludes1 notes

  • R73 — Elevated blood glucose level [Excludes1]: “diabetes mellitus in pregnancy, childbirth and the puerperium (O24.-)” · check together

Referenced by Excludes2 notes

  • O99.2 — Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium [Excludes2]: “diabetes mellitus (O24.-)” · check together

Nearest codes (56)

  • O24.0 — Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium [Sibling]
  • O24.01 — Pre-existing type 1 diabetes mellitus, in pregnancy [Sibling]
  • O24.011 — Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester [Sibling]
  • O24.012 — Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester [Sibling]
  • O24.013 — Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester [Sibling]
  • O24.019 — Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester [Sibling]
  • O24.02 — Pre-existing type 1 diabetes mellitus, in childbirth [Sibling]
  • O24.03 — Pre-existing type 1 diabetes mellitus, in the puerperium [Sibling]
  • and 48 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Can O24 be billed directly?

No. O24 (Diabetes mellitus in pregnancy, childbirth, and the puerperium) 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 O24 in its code family, with their registry titles.

  • O24.0 — Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
  • O24.01 — Pre-existing type 1 diabetes mellitus, in pregnancy
  • O24.011 — Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester
  • O24.012 — Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester
  • O24.013 — Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester
  • O24.019 — Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester
  • O24.02 — Pre-existing type 1 diabetes mellitus, in childbirth
  • O24.03 — Pre-existing type 1 diabetes mellitus, in the puerperium
  • O24.1 — Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium
  • O24.11 — Pre-existing type 2 diabetes mellitus, in pregnancy
  • O24.111 — Pre-existing type 2 diabetes mellitus, in pregnancy, first trimester
  • O24.112 — Pre-existing type 2 diabetes mellitus, in pregnancy, second trimester
  • O24.113 — Pre-existing type 2 diabetes mellitus, in pregnancy, third trimester
  • O24.119 — Pre-existing type 2 diabetes mellitus, in pregnancy, unspecified trimester
  • O24.12 — Pre-existing type 2 diabetes mellitus, in childbirth
  • O24.13 — Pre-existing type 2 diabetes mellitus, in the puerperium
  • O24.3 — Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium
  • O24.31 — Unspecified pre-existing diabetes mellitus in pregnancy
  • O24.311 — Unspecified pre-existing diabetes mellitus in pregnancy, first trimester
  • O24.312 — Unspecified pre-existing diabetes mellitus in pregnancy, second trimester
  • O24.313 — Unspecified pre-existing diabetes mellitus in pregnancy, third trimester
  • O24.319 — Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester
  • O24.32 — Unspecified pre-existing diabetes mellitus in childbirth
  • O24.33 — Unspecified pre-existing diabetes mellitus in the puerperium
  • O24.4 — Gestational diabetes mellitus
  • O24.41 — Gestational diabetes mellitus in pregnancy
  • O24.410 — Gestational diabetes mellitus in pregnancy, diet controlled
  • O24.414 — Gestational diabetes mellitus in pregnancy, insulin controlled
  • O24.415 — Gestational diabetes mellitus in pregnancy, controlled by oral hypoglycemic drugs
  • O24.419 — Gestational diabetes mellitus in pregnancy, unspecified control
  • O24.42 — Gestational diabetes mellitus in childbirth
  • O24.420 — Gestational diabetes mellitus in childbirth, diet controlled
  • O24.424 — Gestational diabetes mellitus in childbirth, insulin controlled
  • O24.425 — Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs
  • O24.429 — Gestational diabetes mellitus in childbirth, unspecified control
  • O24.43 — Gestational diabetes mellitus in the puerperium
  • O24.430 — Gestational diabetes mellitus in the puerperium, diet controlled
  • O24.434 — Gestational diabetes mellitus in the puerperium, insulin controlled
  • O24.435 — Gestational diabetes mellitus in puerperium, controlled by oral hypoglycemic drugs
  • O24.439 — Gestational diabetes mellitus in the puerperium, unspecified control
  • O24.8 — Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium
  • O24.81 — Other pre-existing diabetes mellitus in pregnancy
  • O24.811 — Other pre-existing diabetes mellitus in pregnancy, first trimester
  • O24.812 — Other pre-existing diabetes mellitus in pregnancy, second trimester
  • O24.813 — Other pre-existing diabetes mellitus in pregnancy, third trimester
  • O24.819 — Other pre-existing diabetes mellitus in pregnancy, unspecified trimester
  • O24.82 — Other pre-existing diabetes mellitus in childbirth
  • O24.83 — Other pre-existing diabetes mellitus in the puerperium
  • O24.9 — Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium
  • O24.91 — Unspecified diabetes mellitus in pregnancy
  • O24.911 — Unspecified diabetes mellitus in pregnancy, first trimester
  • O24.912 — Unspecified diabetes mellitus in pregnancy, second trimester
  • O24.913 — Unspecified diabetes mellitus in pregnancy, third trimester
  • O24.919 — Unspecified diabetes mellitus in pregnancy, unspecified trimester
  • O24.92 — Unspecified diabetes mellitus in childbirth
  • O24.93 — Unspecified diabetes mellitus in the puerperium