Key facts for NCD 110.23
- Benefit category
- Inpatient Hospital Services, Physicians' Services
- Effective date
- 03/06/2024
- Implemented 10/07/2024
- Transmittal
- Transmittal 12813
- Versions published
- 2
- Manual chapter
- 110
- NCD Manual (Pub. 100-03)
TL;DR
NCD 110.23 sets Medicare's national policy for stem cell transplantation (formerly 110.8.1) under the benefit category "Inpatient Hospital Services, Physicians' Services", effective 03/06/2024 and implemented 10/07/2024. • Effective for services performed on or after August 1, 1978, for the treatment of leukemia, leukemia in remission, or aplastic anemia when it is reasonable and necessary, It has been revised 1 time since publication and binds every Medicare Administrative Contractor nationally.
Item or service described
A. General
Stem cell transplantation is a process in which stem cells are harvested from either a patient’s (autologous) or donor’s (allogeneic) bone marrow or peripheral blood for intravenous infusion. Autologous stem cell transplantation (AuSCT) is a technique for restoring stem cells using the patient's own previously stored cells. AuSCT must be used to effect hematopoietic reconstitution following severely myelotoxic doses of chemotherapy (HDCT) and/or radiotherapy used to treat various malignancies. Allogeneic hematopoietic stem cell transplantation (HSCT) is a procedure in which a portion of a healthy donor's stem cell or bone marrow is obtained and prepared for intravenous infusion. Allogeneic HSCT may be used to restore function in recipients having an inherited or acquired deficiency or defect. Hematopoietic stem cells are multi-potent stem cells that give rise to all the blood cell types; these stem cells form blood and immune cells. A hematopoietic stem cell is a cell isolated from blood or bone marrow that can renew itself, differentiate to a variety of specialized cells, can mobilize out of the bone marrow into circulating blood, and can undergo programmed cell death, called apoptosis - a process by which cells that are unneeded or detrimental will self-destruct.
The Centers for Medicare & Medicaid Services (CMS) is clarifying that bone marrow and peripheral blood stem cell transplantation is a process which includes mobilization, harvesting, and transplant of bone marrow or peripheral blood stem cells and the administration of high dose chemotherapy or radiotherapy prior to the actual transplant. When bone marrow or peripheral blood stem cell transplantation is covered, all necessary steps are included in coverage. When bone marrow or peripheral blood stem cell transplantation is non-covered, none of the steps are covered.
Indications and limitations of coverage
B. Nationally Covered Indications
I. Allogeneic Hematopoietic Stem Cell Transplantation (HSCT)
• Effective for services performed on or after August 1, 1978, for the treatment of leukemia, leukemia in remission, or aplastic anemia when it is reasonable and necessary,
• Effective for services performed on or after June 3, 1985, for the treatment of severe combined immunodeficiency disease (SCID) and for the treatment of Wiskott-Aldrich syndrome.
• Effective for services performed on or after March 6, 2024, allogeneic hematopoietic stem cell transplant using bone marrow, peripheral blood or umbilical cord blood stem cell products for Medicare patients with myelodysplastic syndromes who have prognostic risk scores of:
• ≥ 1.5 (Intermediate-2 or high) using the International Prognostic Scoring System (IPSS), or
• ≥ 4.5 (high or very high) using the International Prognostic Scoring System - Revised (IPSS-R), or
• ≥ 0.5 (high or very high) using the Molecular International Prognostic Scoring System (IPSS-M).
MDS refers to a group of diverse blood disorders in which the bone marrow does not produce enough healthy, functioning blood cells. These disorders are varied with regard to clinical characteristics, cytologic and pathologic features, and cytogenetics. The abnormal production of blood cells in the bone marrow leads to low blood cell counts, referred to as cytopenias, which are a hallmark feature of MDS along with a dysplastic and hypercellular-appearing bone marrow.
• Effective for claims with dates of service on or after January 27, 2016, allogeneic HSCT for multiple myeloma is covered by Medicare only for beneficiaries with Durie-Salmon Stage II or III multiple myeloma, or International Staging System (ISS) Stage II or Stage III multiple myeloma, and participating in an approved prospective clinical study that meets the criteria below. There must be appropriate statistical techniques to control for selection bias and confounding by age, duration of diagnosis, disease classification, International Myeloma Working Group (IMWG) classification, ISS stage, comorbid conditions, type of preparative/conditioning regimen, graft vs. host disease (GVHD) prophylaxis, donor type and cell source.
A prospective clinical study seeking Medicare coverage for allogeneic HSCT for multiple myeloma pursuant to CED must address the following question:
Compared to patients who do not receive allogeneic HSCT, do Medicare beneficiaries with multiple myeloma who receive allogeneic HSCT have improved outcomes as indicated by:
• Graft vs. host disease (acute and chronic);
• Other transplant-related adverse events;
• Overall survival; and
• (optional) Quality of life?
All CMS-approved clinical studies and registries must adhere to the below listed standards of scientific integrity and relevance to the Medicare population as listed in section g.
• Effective for claims with dates of service on or after January 27, 2016, allogeneic HSCT for myelofibrosis (MF) is covered by Medicare only for beneficiaries with Dynamic International Prognostic Scoring System (DIPSSplus) Intermediate-2 or High primary or secondary MF and participating in an approved prospective clinical study. All Medicare approved studies must use appropriate statistical techniques in the analysis to control for selection bias and potential confounding by age, duration of diagnosis, disease classification, DIPSSplus score, comorbid conditions, type of preparative/conditioning regimen, graft vs. host disease (GVHD) prophylaxis, donor type and cell source.
A prospective clinical study seeking Medicare coverage for allogeneic HSCT for myelofibrosis pursuant to Coverage with Evidence Development (CED) must address the following question:
Compared to patients who do not receive allogeneic HSCT, do Medicare beneficiaries with MF who receive allogeneic HSCT transplantation have improved outcomes as indicated by:
• Graft vs. host disease (acute and chronic);
• Other transplant-related adverse events;
• Overall survival; and
• (optional) Quality of life?
All CMS-approved clinical studies and registries must adhere to the below listed standards of scientific integrity and relevance to the Medicare population as listed in section g.
• Effective for claims with dates of service on or after January 27, 2016, allogeneic HSCT for sickle cell disease (SCD) is covered by Medicare only for beneficiaries with severe, symptomatic SCD who participate in an approved prospective clinical study.
A prospective clinical study seeking Medicare coverage for allogeneic HSCT for sickle cell disease pursuant to Coverage with Evidence Development (CED) must address the following question:
Compared to patients who do not receive allogeneic HSCT, do Medicare beneficiaries with SCD who receive allogeneic HSCT have improved outcomes as indicated by:
• Graft vs. host disease (acute and chronic),
• Other transplant-related adverse events;
• Overall survival; and
• (optional) Quality of life?
All CMS-approved clinical studies and registries must adhere to the below listed standards of scientific integrity and relevance to the Medicare population listed in section g.
• All CMS-approved clinical studies and registries in sections d, e and f must adhere to the below listed standards of scientific integrity and relevance to the Medicare population:
• The principal purpose of the study is to test whether the item or service meaningfully improves health outcomes of affected beneficiaries who are represented by the enrolled subjects.
• The rationale for the study is well supported by available scientific and medical evidence.
• The study results are not anticipated to unjustifiably duplicate existing knowledge.
• The study design is methodologically appropriate and the anticipated number of enrolled subjects is sufficient to answer the research question(s) being asked in the National Coverage Determination.
• The study is sponsored by an organization or individual capable of completing it successfully.
• The research study is in compliance with all applicable Federal regulations concerning the protection of human subjects found in the Code of Federal Regulations (CFR) at 45 CFR Part 46. If a study is regulated by the Food and Drug Administration (FDA), it is also in compliance with 21 CFR Parts 50 and 56. In addition, to further enhance the protection of human subjects in studies conducted under CED, the study must provide and obtain meaningful informed consent from patients regarding the risks associated with the study items and/or services, and the use and eventual disposition of the collected data.
• All aspects of the study are conducted according to appropriate standards of scientific integrity.
• The study has a written protocol that clearly demonstrates adherence to the standards listed here as Medicare requirements.
• The study is not designed to exclusively test toxicity or disease pathophysiology in healthy individuals. Such studies may meet this requirement only if the disease or condition being studied is life threatening as defined in 21 CFR §312.81(a) and the patient has no other viable treatment options.
• The clinical research studies and registries are registered on the www.ClinicalTrials.gov website by the principal sponsor/investigator prior to the enrollment of the first study subject. Registries are also registered in the Agency for Healthcare Quality (AHRQ) Registry of Patient Registries (RoPR).
• The research study protocol specifies the method and timing of public release of all prespecified outcomes to be measured including release of outcomes if outcomes are negative or study is terminated early. The results must be made public within 12 months of the study’s primary completion date, which is the date the final subject had final data collection for the primary endpoint, even if the trial does not achieve its primary aim. The results must include number started/completed, summary results for primary and secondary outcome measures, statistical analyses, and adverse events. Final results must be reported in a publicly accessibly manner; either in a peer-reviewed scientific journal (in print or on-line), in an on-line publicly accessible registry dedicated to the dissemination of clinical trial information such as ClinicalTrials.gov, or in journals willing to publish in abbreviated format (e.g., for studies with negative or incomplete results).
• The study protocol must explicitly discuss beneficiary subpopulations affected by the item or service under investigation, particularly traditionally underrepresented groups in clinical studies, how the inclusion and exclusion criteria effect enrollment of these populations, and a plan for the retention and reporting of said populations in the trial. If the inclusion and exclusion criteria are expected to have a negative effect on the recruitment or retention of underrepresented populations, the protocol must discuss why these criteria are necessary.
• The study protocol explicitly discusses how the results are or are not expected to be generalizable to affected beneficiary subpopulations. Separate discussions in the protocol may be necessary for populations eligible for Medicare due to age, disability or Medicaid eligibility.
Consistent with section 1142 of the Act, the Agency for Healthcare Research and Quality (AHRQ) supports clinical research studies that CMS determines meet the above-listed standards and address the above-listed research questions.
II. Autologous Stem Cell Transplantation (AuSCT)
• Effective for services performed on or after April 28, 1989, AuSCT is considered reasonable and necessary under §l862(a)(1)(A) of the Act for the following conditions and is covered under Medicare for patients with:
• Acute leukemia in remission who have a high probability of relapse and who have no human leucocyte antigens (HLA)-matched;
• Resistant non-Hodgkin's lymphomas or those presenting with poor prognostic features following an initial response;
• Recurrent or refractory neuroblastoma; or,
• Advanced Hodgkin's disease who have failed conventional therapy and have no HLA-matched donor.
• Effective October 1, 2000, single AuSCT is only covered for Durie-Salmon Stage II or III patients that fit the following requirements:
• Newly diagnosed or responsive multiple myeloma. This includes those patients with previously untreated disease, those with at least a partial response to prior chemotherapy (defined as a 50% decrease either in measurable paraprotein [serum and/or urine] or in bone marrow infiltration, sustained for at least 1 month), and those in responsive relapse; and
• Adequate cardiac, renal, pulmonary, and hepatic function.
• Effective for services performed on or after March 15, 2005, when recognized clinical risk factors are employed to select patients for transplantation, high dose melphalan (HDM) together with AuSCT is reasonable and necessary for Medicare beneficiaries of any age group with primary amyloid light chain (AL) amyloidosis who meet the following criteria:
• Amyloid deposition in 2 or fewer organs; and,
• Cardiac left ventricular ejection fraction (EF) greater than 45%.
Text reproduced from the CMS Medicare Coverage Database record for NCD 110.23 version 2. View the original on cms.gov.
Revision history
08/2026 - Transmittal 13752 issued May 26, 2026, is being rescinded and replaced by Transmittal 13910, dated August 14, 2026, to remove business requirement 14464.5, NCD 250.4 Treatment of Actinic Keratosis from the change request. All other information remains the same.( TN 13910 ) (CR14464)
05/2026 - The purpose of this Change Request (CR) is to provide a quarterly maintenance update of ICD-10 coding conversions and other coding updates specific to NCDs. No policy is being changed as a result of these updates. ( TN 13752 ) (CR14464)
03/2025 - The purpose of this Change Request (CR) is to provide a quarterly maintenance update of ICD-10 coding conversions and other coding updates specific to National Coverage Determinations (NCDs). No policy is being changed as a result of these updates. ( TN 13097 ) (CR13939)
11/2024 - Transmittal 12868 issued October 07, 2024, is being rescinded and replaced by Transmittal 12948, dated November 6, 2024, to revise BR 04.4.2 and messaging and add new BR 04.4.2.1 and to update the ICD-10 spreadsheet and IOM for publication 100-04. All other information remains the same. ( TN 12948 ) (CR13604)
10/2024 - The purpose of the Change Request (CR) is to provide a quarterly maintenance update of ICD-10 coding conversions and other coding updates specific to National Coverage Determinations(NCDs). No policy is being changed as a result of these updates. ( TN 12903 ) (CR13818)
10/2024 - Transmittal 12813 issued August 28, 2024, is being rescinded and replaced by Transmittal 12868, dated October 7, 2024, to revise line 8 of the attached spreadsheet to align with billing guidance in Claims Processing Manual (CPM), and revise Pub 100-04 BR 04.3.3 and CPM to add Group Code PR to messaging. This correction does not make any revisions to Pub. 100-03. All other information remains the same. ( TN 12868 ) (CR13604)
08/2024 - Transmittal 12781 issued August 21, 2024, is being rescinded and replaced by Transmittal 12813, dated August 28, 2024, to replace the Pub.100-03 NCD Manual with the correct document that includes sections d-g for Section 1. Allogeneic Hematopoietic Stem Cell. All other information remains the same.
05/2024 - The purpose of this Change Request (CR) is to inform contractors that CMS is expanding Medicare coverage for allogeneic hematopoietic stem cell transplant using bone marrow, peripheral blood or umbilical cord blood stem cell products for Medicare patients with MDS who meet specific criteria. ( TN 12627 ) (CR13604)
02/2024 - The purpose of this Change Request (CR) is to provide a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. ( TN 12493 ) (CR13507)
Revision History of 110.8.1 (see NCD110.23, CR9620 , effective 1/27/16)
10/2022 - Transmittal 11546, dated August 4, 2022, is being rescinded and replaced by Transmittal 11636,
dated, October 5, 2022, to remove ICD-10 dx codes added in error to NCD 150.3, business requirement 12842.4, and restore ICD-10 dx C91.92 removed in error to NCD 110.23, business requirement 12842.3. All other information remains the same. ( TN 11636 ) (CR12842)
08/2022 - The purpose of this Change Request (CR) is to provide a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. ( TN 11546 ) (CR12842)
06/2022 - Transmittal 10832, dated June 2, 2021, is being rescinded and replaced by Transmittal 11453, dated, June 10, 2022, to revise NCD 90.2, NGS, revises business requirement 12124.2 and 12124.2.1 and its associated spreadsheet of coding by retainining all ICD-10 NOC diagnosis codes proposed for deletion effective July 1, 2022. ( TN 11453 ) (CR12124)
01/2022 - Transmittal 11068, dated October 21, 2021, is being rescinded and replaced by Transmittal 11179, dated, January 12, 2022 to revise the attachment for NCD 110.24, CAR-T, to add business requirement 12480.10.1 by adding generic unspecified procedure codes, to clarify coverage and claims processing in the policy section and to review the implementation date. All other information remains the same. ( TN 11179 ) (CR12480)
10/2021 - This Change Request (CR) constitutes a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. These NCD coding changes are the result of newly available codes, coding revisions to NCDs released separately, or coding feedback received. ( TN 11068 ) (CR12480)
09/2021 - This Change Request (CR) constitutes a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. These NCD coding changes are the result of newly available codes, coding revisions to NCDs released separately, or coding feedback received. ( TN 11025 ) (CR12399)
08/2021 - This Change Request (CR) constitutes a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. These NCD coding changes are the result of newly available codes, coding revisions to NCDs released separately, or coding feedback received. ( TN 10963 ) (CR12399)
06/2021 - This Change Request (CR) constitutes a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. These NCD coding changes are the result of newly available codes, coding revisions to NCDs released separately, or coding feedback received. ( TN 10832 ) (CR12124)
05/2021 - This Change Request (CR) constitutes a maintenance update of ICD-10 conversions and other coding updates specific to NCDs. These NCD coding changes are the result of newly available codes, coding revisions to NCDs released separately, or coding feedback received. ( TN 10804 ) (CR12124)
How this NCD shows up on remittances
A service denied under a National Coverage Determination returns CARC 50 (not deemed medically necessary) with remark N386 (decision based on an NCD); a denial citing a local policy instead carries N115. Because NCDs bind nationally, the appeal path is documentation that the patient meets the indications above, not a contractor-policy argument.
How QuickIntell applies NCD 110.23
QuickAuth checks the ordered service and diagnosis against NCD and LCD criteria before the encounter, QuickCode validates the diagnosis pairing on the claim, and QuickRCM routes CARC 50 denials with the policy text and the covered-code list attached so the appeal starts with evidence.
Frequently asked questions — NCD 110.23
What does NCD 110.23 cover?
I. Allogeneic Hematopoietic Stem Cell Transplantation (HSCT) The full indications and limitations are reproduced on this page from the CMS Medicare Coverage Database.
When did NCD 110.23 take effect?
The current version (2) is effective 03/06/2024, implemented 10/07/2024, published in transmittal 12813. CMS lists 2 versions of this NCD.
Does a Local Coverage Determination override NCD 110.23?
No. A National Coverage Determination binds all Medicare Administrative Contractors; an LCD can only address services or circumstances the NCD leaves open. Claims denied under this NCD typically return CARC 50 with remark N386 (NCD) rather than N115 (LCD).
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-02. Verify against the primary file before billing or contracting decisions.
- Medicare Coverage Database NCDs via the CMS Coverage APIVersion API snapshot 2026-09-27 · effective 2026-09-20 · file national-coverage-ncd.jsonSHA-256 a90fadfd264b9ef4…
Disclaimer
This page reproduces the CMS National Coverage Determination text and, for laboratory NCDs, the CMS ICD-10 edit lists, as an operational reference. Coverage decisions depend on the full policy, the claim and the contractor; nothing here is legal, clinical or billing advice. CPT codes are shown as numbers only; CPT descriptors are copyright AMA.