CurrentCurativePolicy CHP-IP-2026-054

Disseminated Intravascular Coagulation

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Medical necessity criteria for acute inpatient admission, observation or outpatient management, ICU and intermediate-level care, continued stay, and discharge readiness for Curative commercial members with disseminated intravascular coagulation or sepsis-induced coagulopathy; applies to all ages, with neonatal and obstetric DIC reviewed by a physician of the same or similar specialty.

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CurrentCurativePolicy CHP-IP-2026-054

Disseminated Intravascular Coagulation

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Policy Summary

PayerCurative

PolicyDisseminated Intravascular Coagulation

Policy CodePolicy CHP-IP-2026-054

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionDocument at least one clinical severity finding and one hospital-level service requirement to support acute inpatient admission.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

ISTH ≥5Overt DIC threshold

SIC ≥4SIC threshold

12h ICU / 24hContinued-stay review

24hDischarge stability period

All agesApplicable population

Physician reviewAdverse determination

Medical Necessity and Level-of-Care Criteria

Acute inpatient admission

Covered when ALL of the following are met:

At least one clinical severity finding
- Clinical severity findings
  - ISTH overt DIC score of 5 or more.
  - SIC score of 4 or more in a patient with sepsis.
  - Platelets below 50,000/mm3 or fibrinogen below 1.5 g/L with active bleeding from more than one site.
  - Rapidly falling platelet count—50 percent or more within 24 to 48 hours—with rising D-dimer and prolonged PT in a patient with a DIC-associated condition.
  - Venous or arterial thrombosis, or purpura fulminans, with laboratory evidence of consumptive coagulopathy.
  - Suspected acute promyelocytic leukemia, evidenced by circulating promyelocytes or blasts with coagulopathy.
At least one hospital-level service requirement
- Inpatient treatment of the underlying cause, such as sepsis, an obstetric emergency, trauma, or malignancy.
- Blood component therapy—platelets, plasma, cryoprecipitate or fibrinogen concentrate, or red cells—guided by bleeding and laboratory thresholds.
- CBC, PT, aPTT, fibrinogen, and D-dimer monitoring every 6 to 12 hours.
- Therapeutic or prophylactic heparin with monitoring for thrombosis-predominant DIC.
- Immediate all-trans retinoic acid and intensive transfusion support for acute promyelocytic leukemia.

Observation or outpatient instead of inpatient

Observation or outpatient management applies only to the following:

Lower-acuity management

Chronic, compensated DIC, such as DIC from a large vascular malformation or stable solid tumor, with platelets above 50,000/mm3, fibrinogen above 1.5 g/L, no bleeding or thrombosis, and outpatient hematology monitoring.
Isolated D-dimer elevation without thrombocytopenia, PT prolongation, or a DIC-associated condition.

Intensive care unit

ICU placement is appropriate when ANY of the following is present:

ICU criteria

DIC with shock, sepsis requiring vasopressors, or multi-organ failure.
Major hemorrhage requiring massive transfusion of 4 or more units of red cells in 6 hours, or intracranial bleeding.
Obstetric DIC, including placental abruption, amniotic fluid embolism, or postpartum hemorrhage, or acute promyelocytic leukemia with active bleeding.
Purpura fulminans or limb-threatening thrombosis.

Step-down or intermediate care

Step-down or intermediate care is appropriate when ANY of the following is present and ICU criteria are not met:

Intermediate-care criteria

Overt DIC with minor bleeding requiring blood components and laboratory monitoring every 6 hours in a hemodynamically stable patient.
Thrombosis-predominant DIC on intravenous heparin with platelets below 50,000/mm3.

Medical-surgical unit

A medical-surgical bed is appropriate when ANY of the following applies and higher-level criteria are not met:

Medical-surgical criteria

DIC is resolving, the underlying cause is controlled, there is no bleeding, and laboratory monitoring is required every 12 to 24 hours.
SIC score is 4 or more in a hemodynamically stable patient with treated infection and no bleeding.

Discharge readiness

Covered when ALL of the following are met:

The underlying cause is treated and controlled, and the underlying condition's discharge criteria are met.
There has been no bleeding or new thrombosis for at least 24 hours, and no blood components have been administered for at least 24 hours.
Platelets are above 50,000/mm3 and rising, fibrinogen is above 1.5 g/L, PT is normalizing, and D-dimer is declining.
An anticoagulation plan is documented when thrombosis occurred, and hematology follow-up is arranged when DIC was severe or the underlying cause remains ongoing.

Continued stay

Continued stay is medically necessary when ANY of the following is documented:

Continued-stay criteria

Ongoing bleeding or thrombosis, or blood component therapy within the previous 24 hours.
ISTH score of 5 or more or SIC score of 4 or more without an improving trend.
The underlying cause is not yet controlled.

Prophylactic plasma or platelet transfusion given solely to correct laboratory values in a non-bleeding patient without a planned procedure is not supported as the sole reason for continued inpatient stay. Blood component therapy should be guided by bleeding risk and clinical need.

Days awaiting placement after DIC and its underlying cause have resolved are not supported as continued inpatient days. These cases require discharge planning and physician review; already authorized days are not retroactively denied.

Admission for an isolated elevated D-dimer or mild thrombocytopenia without a DIC-associated condition, bleeding, or thrombosis does not meet DIC or SIC criteria. Outpatient evaluation is appropriate.

Prophylactic plasma or platelet transfusion solely to correct laboratory values in a non-bleeding patient without a planned procedure does not meet criteria as the sole reason for continued stay. Components should be administered based on bleeding risk and clinical indication.

Placement-related days after DIC and its underlying cause have resolved do not support continued inpatient stay. The case should proceed to discharge planning and physician review, without retroactive denial of previously authorized days.

Diagnosis, Procedure, Revenue, and Threshold References

ICD-10-CMICD-10

D65	Disseminated intravascular coagulation

ICD-10-CM related coagulopathiesICD-10

D68.4	Related coagulopathies
O72.3	Related coagulopathies

ICD-10-PCS transfusion proceduresICD-10

30233N1	Transfusion of plasma
30233R1	Transfusion of platelets
30233K1	Transfusion of red cells
30233L1	Transfusion of red cells
30233M1	Transfusion of red cells
30233T1	Transfusion of red cells

MS-DRGRevenue

813	Coagulation disorders

MS-DRG sepsis principal diagnosisRevenue

871	Septicemia or severe sepsis when sepsis is principal
872	Septicemia or severe sepsis when sepsis is principal

Revenue codesRevenue

0120	Revenue code
0200	Revenue code
0206	Revenue code
0250	Revenue code
0300	Revenue code
0390	Revenue code
0391	Revenue code

ISTH overt DIC score

ThresholdISTH overt DIC score ≥5

Clinical useA score of 5 or more is compatible with overt DIC

Applies toClinical severity assessment for DIC-related inpatient admission and continued stay

Sepsis-induced coagulopathy score

ThresholdSepsis-induced coagulopathy score ≥4

Clinical use

Documentation, Review, and Adverse Determination Requirements

Prior Authorization

Acute Inpatient Admission Requires Severity and Hospital-Level Service

Acute inpatient admission for DIC or sepsis-induced coagulopathy is medically necessary only when the record documents at least one clinical severity finding and at least one hospital-level service required.

Clinical severity may include an ISTH overt DIC score of 5 or more; a SIC score of 4 or more in sepsis; severe thrombocytopenia or hypofibrinogenemia with active bleeding from more than one site; rapidly falling platelets with rising D-dimer and prolonged PT; thrombosis with laboratory evidence of consumptive coagulopathy; or suspected acute promyelocytic leukemia with coagulopathy.
Hospital-level service may include treatment of the underlying cause, blood component therapy guided by bleeding and laboratory thresholds, serial coagulation monitoring, monitored heparin therapy for thrombosis-predominant DIC, or immediate all-trans retinoic acid with intensive transfusion support for acute promyelocytic leukemia.

Documentation Required

Qualifying Inpatient Services

Clinical Background

Disseminated intravascular coagulation (DIC) is an acquired syndrome of systemic coagulation activation. It can cause both microvascular thrombosis and bleeding because platelets and clotting factors are consumed. DIC is secondary to an underlying condition, such as sepsis, trauma, malignancy, obstetric complications, vascular malformations, or toxins; treatment of that underlying cause is the cornerstone of management. Blood components are used for bleeding or high bleeding risk rather than laboratory abnormalities alone, and therapeutic-dose heparin may be considered when thrombosis predominates. In acute promyelocytic leukemia, immediate all-trans retinoic acid is essential.

Clinical Definitions and Scoring Tools

ISTH overt DIC score

Platelet componentPlatelet count: above 100 = 0; 50 to 100 = 1; below 50 × 10^9/L = 2

Fibrin-related markerNo increase = 0; moderate increase = 2; strong increase = 3

PT prolongationBelow 3 seconds = 0; 3 to 6 seconds = 1; above 6 seconds = 2

Fibrinogen componentAbove 1.0 g/L = 0; 1.0 g/L or below = 1

Interpretation thresholdA total score of 5 or more is compatible with overt DIC

Sepsis-induced coagulopathy score

Platelet component

Covered Emergency Treatment Regimen

Regimen	Indication	Coverage
Immediate all-trans retinoic acid with intensive transfusion support	Suspected or confirmed acute promyelocytic leukemia with coagulopathy or active bleeding	Covered

Policy Summary

PayerCurative

PolicyDisseminated Intravascular Coagulation

Policy CodePolicy CHP-IP-2026-054

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionDocument at least one clinical severity finding and one hospital-level service requirement to support acute inpatient admission.

SourceLink

On This Page

A score of 4 or more indicates sepsis-induced coagulopathy

Applies toPatients with sepsis being evaluated for DIC or SIC-related inpatient care

Platelet count with active bleeding

ThresholdPlatelets <50,000/mm3

Clinical contextActive bleeding from more than one site

Use in admission criteriaQualifies as a clinical severity finding when combined with active bleeding

Fibrinogen with bleeding

ThresholdFibrinogen <1.5 g/L

Clinical contextActive bleeding from more than one site

Replacement contextFibrinogen replacement may be provided with bleeding at this level

Rapid platelet decline

ThresholdPlatelet count falling ≥50% within 24 to 48 hours

Required laboratory changeRising D-dimer

Additional findingProlonged PT in a patient with a DIC-associated condition

Massive transfusion

Threshold≥4 units of red cells in 6 hours

Clinical findingMajor hemorrhage requiring massive transfusion

Level-of-care implicationSupports intensive care unit placement

Chronic compensated DIC outpatient threshold

Platelet thresholdPlatelets >50,000/mm3

Fibrinogen thresholdFibrinogen >1.5 g/L

Clinical statusNo bleeding or thrombosis

Management settingOutpatient hematology monitoring for chronic, compensated DIC

Discharge laboratory status

Platelet statusPlatelets >50,000/mm3 and rising

Fibrinogen statusFibrinogen >1.5 g/L

Coagulation statusPT normalizing

Fibrin-related markerD-dimer declining

Document the qualifying inpatient services and their clinical indications. Services should be directed at treating the underlying cause or managing bleeding, thrombosis, or consumptive coagulopathy.

Inpatient treatment of sepsis, obstetric emergency, trauma, malignancy, or another underlying cause.
Platelets, plasma, cryoprecipitate or fibrinogen concentrate, and red cells guided by bleeding and laboratory thresholds.
CBC, PT, aPTT, fibrinogen, and D-dimer monitoring every 6 to 12 hours when clinically indicated.
Therapeutic or prophylactic heparin with monitoring in thrombosis-predominant DIC, or immediate all-trans retinoic acid and intensive transfusion support for acute promyelocytic leukemia.

Prior Authorization

Partial Approval and Concurrent Review

Concurrent review applies to each continued-stay period. A request may be approved in full or in part when the supported services, quantity, or duration are documented; unsupported portions are referred for the applicable physician review.

Automated systems and non-physician reviewers may approve a request in full or in part but may not issue an adverse determination.
Days already authorized are not retroactively denied.
The expected length-of-stay benchmark is a planning benchmark, not a limit on covered days.

Documentation Required

Required Clinical Documentation

Submit clinical documentation supporting the diagnosis, severity, treatment, monitoring, and discharge plan. The request and medical record should contain the following information.

Underlying condition and its treatment.
Serial platelet count, PT or INR, aPTT, fibrinogen, D-dimer, and peripheral smear.
ISTH overt DIC score and, in sepsis, SIC score with components.
Bleeding and thrombosis assessment.
Blood components given, their indications, and post-transfusion values.
Anticoagulation decisions and discharge plan.

Prior Authorization

Continued-Stay Support

Continued stay is reviewed every 12 hours in the ICU and every 24 hours otherwise. Continued inpatient care is medically necessary when any qualifying condition is documented and the underlying cause or coagulopathy remains clinically active.

Ongoing bleeding or thrombosis, or blood component therapy within the previous 24 hours.
ISTH score of 5 or more or SIC score of 4 or more without an improving trend.
Underlying cause not yet controlled.
Extended-stay support may include uncontrolled cause, ongoing transfusion requirement, major hemorrhage or thrombosis, acute promyelocytic leukemia induction, obstetric hemorrhage requiring procedures, or multi-organ failure.

Documentation Required

Discharge Readiness Documentation

Document that discharge criteria have been met before requesting discharge or ending continued-stay support.

The underlying cause is treated and controlled, and its discharge criteria are met.
There has been no bleeding or new thrombosis for at least 24 hours and no blood components for at least 24 hours.
Platelets are above 50,000/mm3 and rising, fibrinogen is above 1.5 g/L, PT is normalizing, and D-dimer is declining.
Document an anticoagulation plan when thrombosis occurred and arrange hematology follow-up when DIC was severe or the cause remains ongoing.

Documentation Required

Support Requested Quantity and Duration

Support the requested quantity, units, and duration with patient-specific documentation. When the request exceeds what the record supports, only the unsupported increment is subject to adverse review.

Tie each requested inpatient day, service, unit, or duration to the active clinical condition and treatment plan.
Include serial findings, treatment requirements, and response supporting the requested duration.

Denial Risk

Insufficient Evidence of DIC or SIC

Isolated laboratory abnormalities do not establish DIC or SIC medical necessity. Admission or continued inpatient care is not supported by an elevated D-dimer or mild thrombocytopenia alone without a DIC-associated condition, bleeding, or thrombosis.

Document the qualifying underlying condition and clinical findings when requesting inpatient care.
Outpatient evaluation may be appropriate when DIC or SIC criteria are not met.

Denial Risk

Prophylactic Component Therapy Without Clinical Indication

Prophylactic plasma or platelet transfusion solely to correct laboratory values is not supported for a non-bleeding patient without a planned procedure when it is the sole reason for continued stay.

Component therapy should be guided by bleeding risk, clinical indication, and applicable laboratory thresholds.
Requests in this circumstance are referred for physician review rather than denied by an automated system or non-physician reviewer.

Denial Risk

Awaiting Placement After Resolution

Days spent awaiting placement after DIC and its underlying cause have resolved are routed to physician review and discharge planning. Do not issue a retroactive denial solely for these days.

Document that the coagulopathy and underlying cause have resolved.
Provide the discharge-planning or placement status and any remaining clinical barriers.

Prior Authorization

Physician Review Required for Adverse Determination

Only a licensed physician of the same or similar specialty may issue an adverse determination, after offering the requesting provider a peer-to-peer discussion.

The reviewing physician must also meet applicable licensure, specialty, and medical-director requirements of the plan's situs state.

Billing Rule

Requests Failing Criteria Require Physician Review

Requests that fail the stated criteria must be referred for physician review. Automated systems and non-physician clinical reviewers may approve a request in full or in part but may never issue an adverse determination.

The absence of a criterion addressing a service is not, by itself, a basis for an adverse determination.
A physician must apply generally accepted standards of medical practice when reviewing an unsupported request.

Billing Rule

Unsupported Excess Quantity or Duration

When the requested quantity, units, or duration exceeds what the documentation supports, approve the supported portion and review only the unsupported excess for possible adverse determination.

Do not subject the supported quantity or duration to adverse review solely because an excess was requested.
Apply concurrent review to each continued-stay period; previously authorized days are not retroactively denied.

100 to 150 = 1; below 100 × 10^9/L = 2

PT-INR component1.2 to 1.4 = 1; above 1.4 = 2

SOFA componentSOFA 1 = 1; SOFA 2 or more = 2, capped

Interpretation thresholdA total score of 4 or more indicates sepsis-induced coagulopathy

Disseminated intravascular coagulation

DefinitionAn acquired syndrome of systemic activation of coagulation

Thrombotic effectCan cause microvascular thrombosis

Bleeding effectCan cause bleeding through consumption of platelets and clotting factors

Underlying causeDIC is always secondary to an underlying condition