What is ICD-10 code D69.0?

D69.0 is the ICD-10-CM diagnosis code for Allergic purpura. It belongs to the ICD-10-CM chapter for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (d50-d89). D69.0 is a billable code, meaning it can be reported on a claim as a primary or secondary diagnosis when supported by documentation. D69.0 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Yes. D69.0 is a billable ICD-10-CM code that can be reported on professional and institutional claims as a primary or secondary diagnosis when the provider documentation supports the specific condition described. Billable codes in ICD-10-CM are coded to the highest level of specificity available for the documented diagnosis. D69.0 is current for fiscal year 2026 and remains in the active CMS ICD-10-CM code set published by the National Center for Health Statistics.

What is the V28 vs V24 difference for D69.0?

CMS phased in the V28 risk adjustment model over payment years 2024 (33%), 2025 (67%), and 2026 (100%), replacing V24. V28 consolidates HCC categories, removes some lower-acuity conditions, and recalibrates RAF weights across the entire model. D69.0 was a payment HCC under V24 (Coagulation Defects and Other Specified Hematological Disorders) but the V28 recalibration removed it from the risk adjustment model. Both models can still appear in legacy data and in payer-specific lookback periods.

What should coders know when reporting D69.0?

Verify the documentation specifies this is allergic purpura (also known as IgA vasculitis or Henoch-Schönlein purpura) rather than other types of purpura, as the cause determines the correct code Document any systemic involvement (joint pain, abdominal symptoms, kidney involvement) as these may require additional codes and affect severity assessment Because D69.0 maps to a payment HCC, the documentation must also satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's risk adjustment score.

D69.0: Allergic purpura — ICD-10 | Coagulation

ICD-10-CM Code View

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Code lookupD69.0Effective periodFY2026 Apr Update (Apr 1-Sep 30)

FY 2026 Apr update / Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) / Coagulation defects, purpura and other hemorrhagic conditions (D65-D69)

D69.0

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Allergic purpura

Allergic purpura is a condition where small blood vessels in the skin become inflamed due to an allergic reaction, causing purple or red spots (purpura) to appear on the skin. This is typically a non-serious condition that resolves on its own, though it can occasionally affect other organs.

Buddy Insight

CMS-HCC V28

Not risk-adjusted for this model/period.

RAF 0

CMS-HCC V24

Mapped

HCC 48

Coagulation Defects and Other...

RAF 0.209

ACA/HHS

Not risk-adjusted for this model/period.

RAF 0

ESRD/PACE

Mapped

HCC 48

Coagulation Defects and Other...

RAF 0.0

RXHCC

Not risk-adjusted for this model/period.

RAF 0

Code Trumping

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Code Book Path

Official

D69Purpura and other hemorrhagic conditions

D69.0Allergic purpura

Inclusion Terms

Official

Allergic vasculitis
Nonthrombocytopenic hemorrhagic purpura
Nonthrombocytopenic idiopathic purpura
Purpura anaphylactoid
Purpura Henoch(-Schönlein)

Excludes 2

Official

ICD-10-CM does not list Excludes 2 notes for D69.0 in this effective period.

Related Child Codes

Official

D69.1Qualitative platelet defects

D69.2Other nonthrombocytopenic purpura

D69.3Immune thrombocytopenic purpura

D69.4Other primary thrombocytopenia

D69.5Secondary thrombocytopenia

Includes

Official

ICD-10-CM does not list Includes notes for D69.0 in this effective period.

Excludes 1

Official

thrombocytopenic hemorrhagic purpura (D69.3)

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for D69.0 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for D69.0 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for D69.0 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance

Document the characteristic non-thrombocytopenic palpable purpura distribution, associated symptoms (joint pain, abdominal pain, hematuria/proteinuria), urinalysis results, renal function testing, and skin biopsy findings showing IgA deposits when performed.

Record any gastrointestinal or renal complications and treatment approach.

MEAT Support

HCC Buddy guidance

Record any gastrointestinal or renal complications and treatment approach.

Audit Caution

HCC Buddy guidance

Platelet count is normal in allergic purpura — if thrombocytopenia is present, reconsider the diagnosis.

In adults, the renal manifestations are often more severe and should be coded separately with appropriate N-codes.

Do not confuse with thrombocytopenic purpura (D69.3, D69.4x) which involves low platelet counts.

Common Mistakes

HCC Buddy guidance

D69.2 (Other nonthrombocytopenic purpura) — non-allergic causes of purpura with normal platelets

D69.3 (Immune thrombocytopenic purpura) — platelet-mediated purpura with thrombocytopenia

M31.0 (Hypersensitivity angiitis) — other forms of vasculitis

N05.x (Unspecified nephritic syndrome) — may be needed for renal involvement.

Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.

Is D69.0 an HCC code?

Yes. D69.0 maps to Coagulation Defects and Other Specified Hematological Disorders under the V24 model but is not retained in V28.

HCC Category Mapping

V24HCC 48, Coagulation Defects and Other Specified Hematological Disorders

0.209

ESRDHCC 48, Coagulation Defects and Other Specified Hematological Disorders

0.000

RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.

MEAT Criteria for D69.0

For D69.0to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically, it has to be re-documented and supported each calendar year.

MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
EEvaluate: test results, medication response, or physical findings reviewed by the provider
AAssess: explicit mention in the assessment or plan with acknowledgment of status
TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis

Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed D69.0 during that encounter, not just copy-forwarded from a problem list.

Coder workflow notes

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What This Code Means

D69.0 is the ICD-10-CM diagnosis code for allergic purpura. Allergic purpura is a condition where small blood vessels in the skin become inflamed due to an allergic reaction, causing purple or red spots (purpura) to appear on the skin. This is typically a non-serious condition that resolves on its own, though it can occasionally affect other organs. D69.0 sits in the ICD-10-CM chapter for diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (d50-d89), within the section covering coagulation defects, purpura and other hemorrhagic conditions (d65-d69).

Under the older CMS-HCC V24 model, D69.0 maps to Coagulation Defects and Other Specified Hematological Disorders (HCC 48) with a community, non-dual, aged base RAF weight of 0.209. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.

Verify the documentation specifies this is allergic purpura (also known as IgA vasculitis or Henoch-Schönlein purpura) rather than other types of purpura, as the cause determines the correct code. Because D69.0 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for D69.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

•Verify the documentation specifies this is allergic purpura (also known as IgA vasculitis or Henoch-Schönlein purpura) rather than other types of purpura, as the cause determines the correct code
•Document any systemic involvement (joint pain, abdominal symptoms, kidney involvement) as these may require additional codes and affect severity assessment

Clinical Significance

Allergic purpura, also known as Henoch-Schonlein purpura or IgA vasculitis, is an immune-mediated small vessel vasculitis characterized by palpable purpura predominantly on the lower extremities, arthritis, abdominal pain, and renal involvement. It is most common in children but can occur in adults with typically more severe renal manifestations. Long-term prognosis depends primarily on the degree of renal involvement.

Documentation Requirements

✓Document the characteristic non-thrombocytopenic palpable purpura distribution, associated symptoms (joint pain, abdominal pain, hematuria/proteinuria), urinalysis results, renal function testing, and skin biopsy findings showing IgA deposits when performed.
✓Record any gastrointestinal or renal complications and treatment approach.

Excludes 1, Do NOT code together

thrombocytopenic hemorrhagic purpura (D69.3)

Commonly Confused Codes

•D69.2 (Other nonthrombocytopenic purpura): non-allergic causes of purpura with normal platelets
•D69.3 (Immune thrombocytopenic purpura): platelet-mediated purpura with thrombocytopenia
•M31.0 (Hypersensitivity angiitis): other forms of vasculitis
•N05.x (Unspecified nephritic syndrome): may be needed for renal involvement.