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ICD-10/O44.52

O44.52 ICD-10-CM Code: Low lying placenta with hemorrhage, second trimester

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 817 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC (MDC 14)
  • MS-DRG 818 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC (MDC 14)
  • MS-DRG 819 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)
  • MS-DRG 831 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH MCC (MDC 14)
  • MS-DRG 832 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH CC (MDC 14)
  • MS-DRG 833 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Low lying placenta with hemorrhage, second trimester is a billable ICD-10-CM diagnosis code (O44.52).

Change history

  • FY2017 — 2016-10-01
    Added to the code set
    Low lying placenta with hemorrhage, second trimester
    FY2017 changes

Verify Before Coding

  • Billable — reportable as written.
  • Age-restricted: the Medicare Code Editor lists this as a maternity (age 9-64) diagnosis; other ages are presumed incorrect.
  • MCC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

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 O44.52 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]
  • O30-O48 — Maternal care related to the fetus and amniotic cavity and possible delivery problems [Hierarchy]
  • O44 — Clinical Diagnosis [Hierarchy]
  • O44.5 — Clinical Diagnosis [Hierarchy]

Referenced by Excludes1 notes

  • O46 — Antepartum hemorrhage, not elsewhere classified [Excludes1](via O44.-): “placenta previa (O44.-)” · check together
  • O67 — Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified [Excludes1](via O44.-): “placenta previa (O44.-)” · check together

Referenced by Excludes2 notes

  • O43 — Placental disorders [Excludes2](via O44.-): “placenta previa (O44.-)” · check together

Clinical classification (CCSR)

  • PRG018 — Maternal care related to disorders of the placenta and placental implantation [CCSR]
  • PRG010 — Hemorrhage after first trimester [CCSR]

Potential MS-DRG

  • MCC — Major Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (MCC).”
  • DRG 817 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC (MDC 14)”
  • DRG 818 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC (MDC 14)”
  • DRG 819 — OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)”
  • DRG 831 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH MCC [MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH MCC (MDC 14)”
  • DRG 832 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH CC [MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITH CC (MDC 14)”
  • DRG 833 — OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITHOUT CC/MCC [MS-DRG]: “OTHER ANTEPARTUM DIAGNOSES WITHOUT O.R. PROCEDURES WITHOUT CC/MCC (MDC 14)”

MDC crossing · procedures (94)

  • MDC 14 — Pregnancy, Childbirth and the Puerperium [MDC crossing]: “Pregnancy, Childbirth and the Puerperium — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • 0U570ZZ — Destruction of Bilateral Fallopian Tubes, Open Approach [Same-MDC procedure]: “Destruction of Bilateral Fallopian Tubes, Open Approach — grouped in MDC 14, the procedure side of this code's crossing.” · check together
  • 0U573ZZ — Destruction of Bilateral Fallopian Tubes, Percutaneous Approach [Same-MDC procedure]: “Destruction of Bilateral Fallopian Tubes, Percutaneous Approach — grouped in MDC 14, the procedure side of this code's crossing.” · check together
  • 0U574ZZ — Destruction of Bilateral Fallopian Tubes, Percutaneous Endoscopic Approach [Same-MDC procedure]: “Destruction of Bilateral Fallopian Tubes, Percutaneous Endoscopic Approach — grouped in MDC 14, the procedure side of this code's crossing.” · check together
  • 0U577ZZ — Destruction of Bilateral Fallopian Tubes, Via Natural or Artificial Opening [Same-MDC procedure]: “Destruction of Bilateral Fallopian Tubes, Via Natural or Artificial Opening — grouped in MDC 14, the procedure side of this code's crossing.” · check together
  • 0U578ZZ — Destruction of Bilateral Fallopian Tubes, Via Natural or Artificial Opening Endoscopic [Same-MDC procedure]: “Destruction of Bilateral Fallopian Tubes, Via Natural or Artificial Opening Endoscopic — grouped in MDC 14, the procedure side of this code's crossing.” · check together
  • and 89 more

Nearest codes (30)

  • O44 — Placenta previa [Sibling]
  • O44.0 — Complete placenta previa NOS or without hemorrhage [Sibling]
  • O44.00 — Complete placenta previa NOS or without hemorrhage, unspecified trimester [Sibling]
  • O44.01 — Complete placenta previa NOS or without hemorrhage, first trimester [Sibling]
  • O44.02 — Complete placenta previa NOS or without hemorrhage, second trimester [Sibling]
  • O44.03 — Complete placenta previa NOS or without hemorrhage, third trimester [Sibling]
  • O44.1 — Complete placenta previa with hemorrhage [Sibling]
  • O44.10 — Complete placenta previa with hemorrhage, unspecified trimester [Sibling]
  • and 22 more

Change history

  • FY2017 — Added to the code set [Change history]

Referenced by Other Codes

Clinical classification (AHRQ CCSR):PRG018 — Maternal care related to disorders of the placenta and placental implantation (default); PRG010 — Hemorrhage after first trimester.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

MCC — Major Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 247 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 6 MS-DRGs: DRG 817 (MDC 14), DRG 818 (MDC 14), DRG 819 (MDC 14), DRG 831 (MDC 14), DRG 832 (MDC 14), DRG 833 (MDC 14).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name O44.52 or its code family.

2 Excludes1 notes: O46 (via O44.-), O67 (via O44.-).

1 Excludes2 notes: O43 (via O44.-).

Nearest Codes in This Family

Official ICD-10-CM classifications closest to O44.52 in its code family, with their registry titles.

  • O44.33 — Partial placenta previa with hemorrhage, third trimester
  • O44.4 — Low lying placenta NOS or without hemorrhage
  • O44.40 — Low lying placenta NOS or without hemorrhage, unspecified trimester
  • O44.41 — Low lying placenta NOS or without hemorrhage, first trimester
  • O44.42 — Low lying placenta NOS or without hemorrhage, second trimester
  • O44.43 — Low lying placenta NOS or without hemorrhage, third trimester
  • O44.5 — Low lying placenta with hemorrhage
  • O44.50 — Low lying placenta with hemorrhage, unspecified trimester
  • O44.51 — Low lying placenta with hemorrhage, first trimester
  • O44.53 — Low lying placenta with hemorrhage, third trimester

View all codes in the O44 family