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NCD 190.30 · version 1 · Laboratory NCD

NCD 190.30: Tumor Antigen by Immunoassay - CA 19-9

Reviewed by QuickIntell RCM Editorial Team · Last reviewed

Data effective
Data currency: Medicare Coverage Database release of September 24, 2026 (effective September 20, 2026); Lab NCD code lists January 2026 (effective January 1, 2026). Next CMS release: weekly (every Thursday) for the MCD; quarterly for lab NCD code lists.

Key facts for NCD 190.30

Benefit category
Diagnostic Laboratory Tests
Effective date
11/25/2002
Implemented 01/01/2003
Transmittal
Transmittal 17
Versions published
1
Manual chapter
190
NCD Manual (Pub. 100-03)
Lab edit list
28 covered ICD-10
245 non-covered

TL;DR

NCD 190.30 sets Medicare's national policy for tumor antigen by immunoassay - ca 19-9 under the benefit category "Diagnostic Laboratory Tests", effective 11/25/2002 and implemented 01/01/2003. Multiple tumor markers are available for monitoring the response of certain malignancies to therapy and assessing whether residual tumor exists post-surgical therapy. As a laboratory NCD it carries a national ICD-10 edit list: 28 diagnosis codes support medical necessity and 245 are denied, applied automatically by every Medicare contractor to 1 procedure code.

Item or service described

Immunoassay determinations of the serum levels of certain proteins or carbohydrates serve as tumor markers. When elevated, serum concentration of these markers may reflect tumor size and grade. This policy specifically addresses the following tumor antigen: CA 19-9.

Indications and limitations of coverage

Indications

Multiple tumor markers are available for monitoring the response of certain malignancies to therapy and assessing whether residual tumor exists post-surgical therapy.

Levels are useful in following the course of patients with established diagnosis of pancreatic and biliary ductal carcinoma. The test is not indicated for diagnosing these two diseases.

Limitations

These services are not covered for the evaluation of patients with signs or symptoms suggestive of malignancy. The service may be ordered at times necessary to assess either the presence of recurrent disease or the patient's response to treatment with subsequent treatment cycles.

Note: Scroll down for links to the quarterly Covered Code Lists (including narrative).

Text reproduced from the CMS Medicare Coverage Database record for NCD 190.30 version 1. View the original on cms.gov.

Laboratory NCD code lists (January 2026)

Medicare contractors apply this NCD through a national edit: the procedure codes below are paid only when the claim carries a covered diagnosis. The January 2026 list holds 28 covered and 245 non-covered ICD-10-CM codes plus 1 codes with other resolution rules.

1 procedure code are edited against this NCD's diagnosis list. CPT codes are shown as numbers only; descriptors are licensed by the AMA.

Procedure codes subject to NCD 190.30
CodeCode set
86301CPT (descriptor licensed by AMA)

The first 28 of 28 covered diagnosis codes, with FY2027 ICD-10-CM descriptions. A claim with any covered code on the line supports medical necessity under the national edit.

Covered ICD-10-CM codes for NCD 190.30 (sample)
ICD-10-CMDescriptionEffective
C221Intrahepatic bile duct carcinoma2015-10-01
C23Malignant neoplasm of gallbladder2015-10-01
C240Malignant neoplasm of extrahepatic bile duct2015-10-01
C241Malignant neoplasm of ampulla of Vater2015-10-01
C248Malignant neoplasm of overlapping sites of biliary tract2015-10-01
C249Malignant neoplasm of biliary tract, unspecified2015-10-01
C250Malignant neoplasm of head of pancreas2015-10-01
C251Malignant neoplasm of body of pancreas2015-10-01
C252Malignant neoplasm of tail of pancreas2015-10-01
C253Malignant neoplasm of pancreatic duct2015-10-01
C254Malignant neoplasm of endocrine pancreas2015-10-01
C257Malignant neoplasm of other parts of pancreas2015-10-01
C258Malignant neoplasm of overlapping sites of pancreas2015-10-01
C259Malignant neoplasm of pancreas, unspecified2015-10-01
C787Secondary malignant neoplasm of liver and intrahepatic bile duct2015-10-01
C7880Secondary malignant neoplasm of unspecified digestive organ2015-10-01
C7889Secondary malignant neoplasm of other digestive organs2015-10-01
D376Neoplasm of uncertain behavior of liver, gallbladder and bile ducts2015-10-01
D378Neoplasm of uncertain behavior of other specified digestive organs2015-10-01
D379Neoplasm of uncertain behavior of digestive organ, unspecified2015-10-01
G893Neoplasm related pain (acute) (chronic)2015-10-01
M3303Juvenile dermatomyositis without myopathy2017-10-01
M3313Other dermatomyositis without myopathy2017-10-01
M3393Dermatopolymyositis, unspecified without myopathy2017-10-01
R978Other abnormal tumor markers2015-10-01
Z85068Personal history of other malignant neoplasm of small intestine2015-10-01
Z8507Personal history of malignant neoplasm of pancreas2015-10-01
Z8509Personal history of malignant neoplasm of other digestive organs2015-10-01

245 diagnosis codes deny automatically under this NCD; the first 20 are shown.

Non-covered ICD-10-CM codes for NCD 190.30 (sample)
ICD-10-CMDescription
R99Ill-defined and unknown cause of mortality
Z0000Encounter for general adult medical examination without abnormal findings
Z0001Encounter for general adult medical examination with abnormal findings
Z00110Health examination for newborn under 8 days old
Z00111Health examination for newborn 8 to 28 days old
Z00121Encounter for routine child health examination with abnormal findings
Z00129Encounter for routine child health examination without abnormal findings
Z005Encounter for examination of potential donor of organ and tissue
Z006Encounter for examination for normal comparison and control in clinical research program
Z0070Encounter for examination for period of delayed growth in childhood without abnormal findings
Z0071Encounter for examination for period of delayed growth in childhood with abnormal findings
Z008Encounter for other general examination
Z020Encounter for examination for admission to educational institution
Z021Encounter for pre-employment examination
Z022Encounter for examination for admission to residential institution
Z023Encounter for examination for recruitment to armed forces
Z024Encounter for examination for driving license
Z025Encounter for examination for participation in sport
Z026Encounter for examination for insurance purposes
Z0271Encounter for disability determination

Revision history

07/2004 - Published NCD in the NCD Manual without change to narrative contained in PM AB-02-110. Coding guidance now published in Medicare Lab NCD Manual. Effective and Implementation dates NA. ( TN 17 ) (CR 2130)

07/2002 - Implemented NCD. Effective date 11/25/02. Implementation date 1/01/03. ( TN AB-02-110 ) (CR 2130)

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 190.30

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 190.30

What does NCD 190.30 cover?

Multiple tumor markers are available for monitoring the response of certain malignancies to therapy and assessing whether residual tumor exists post-surgical therapy. The full indications and limitations are reproduced on this page from the CMS Medicare Coverage Database.

When did NCD 190.30 take effect?

The current version (1) is effective 11/25/2002, implemented 01/01/2003, published in transmittal 17. This is the only published version.

Does a Local Coverage Determination override NCD 190.30?

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).

Which diagnosis codes are covered under NCD 190.30?

The January 2026 laboratory NCD edit list contains 28 ICD-10-CM codes that support tumor antigen by immunoassay - ca 19-9 (for example C221 Intrahepatic bile duct carcinoma; C23 Malignant neoplasm of gallbladder; C240 Malignant neoplasm of extrahepatic bile duct) and 245 codes that deny. The list applies to 86301.

How often does the lab NCD code list for 190.30 change?

CMS updates the laboratory NCD edit module quarterly, with the January release carrying the annual ICD-10-CM code changes. Codes added or deleted mid-year appear in the quarterly change spreadsheets on the Lab NCDs page.

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.

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.