209 Neuroendocrine tumors (209.00-209.79) ICD-9-CM
The 209.00-209.79 block classified 209 neuroendocrine tumors with 56 legacy diagnosis codes. None remain valid for claim submission; each code below links to its reference page with the official ICD-10-CM replacement under the CMS General Equivalence Mappings.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Legacy Codes in the 209.00-209.79 Block 56 codes
None of these codes remain valid for claim submission. Each code page shows its ICD-10-CM replacement under the CMS General Equivalence Mappings.
- 209.00 Mal crcnoid sm intst NOS
- 209.01 Malig carcinoid duodenum
- 209.02 Malig carcinoid jejunum
- 209.03 Malig carcinoid ileum
- 209.10 Mal crcnoid lg intst NOS
- 209.11 Malig carcinoid appendix
- 209.12 Malig carcinoid cecum
- 209.13 Mal crcnoid ascend colon
- 209.14 Mal crcnoid transv colon
- 209.15 Mal carcinoid desc colon
- 209.16 Mal carcinoid sig colon
- 209.17 Malig carcinoid rectum
- 209.20 Mal crcnd prim site unkn
- 209.21 Mal carcinoid bronc/lung
- 209.22 Malig carcinoid thymus
- 209.23 Malig carcinoid stomach
- 209.24 Malig carcinoid kidney
- 209.25 Mal carcnoid foregut NOS
- 209.26 Mal carcinoid midgut NOS
- 209.27 Mal carcnoid hindgut NOS
- 209.29 Malig carcinoid oth site
- 209.30 Malig neuroendo ca NOS
- 209.31 Merkel cell ca-face
- 209.32 Merkel cell ca-sclp/neck
- 209.33 Merkel cell ca-up limb
- 209.34 Merkel cell ca-low limb
- 209.35 Merkel cell ca-trunk
- 209.36 Merkel cell ca-oth sites
- 209.40 Ben crcnoid sm intst NOS
- 209.41 Ben carcinoid duodenum
- 209.42 Benign carcinoid jejunum
- 209.43 Benign carcinoid ileum
- 209.50 Ben crcnoid lg intst NOS
- 209.51 Ben carcinoid appendix
- 209.52 Benign carcinoid cecum
- 209.53 Ben carcinoid asc colon
- 209.54 Ben crcinoid trans colon
- 209.55 Ben carcinoid desc colon
- 209.56 Ben carcinoid sig colon
- 209.57 Benign carcinoid rectum
- 209.60 Ben crcnd prim site unkn
- 209.61 Ben carcinoid bronc/lung
- 209.62 Benign carcinoid thymus
- 209.63 Benign carcinoid stomach
- 209.64 Benign carcinoid kidney
- 209.65 Ben crcinoid foregut NOS
- 209.66 Ben crcinoid midgut NOS
- 209.67 Ben crcnoid hindgut NOS
- 209.69 Bengn carcinoid oth site
- 209.70 Sec neuroendo tumor NOS
- 209.71 Sec neuroend tu dist lym
- 209.72 Sec neuroend tumor-liver
- 209.73 Sec neuroendo tumor-bone
- 209.74 Sec neuroendo tu-periton
- 209.75 Secondary Merkel cell ca
- 209.79 Sec neuroend tu oth site
Questions About This Page
Are the 209.00-209.79 codes still billable?
No. Every code in this block became invalid for U.S. claims after September 30, 2015. Each code page linked above shows the ICD-10-CM replacement CMS assigned in the General Equivalence Mappings, and the ICD-9 / ICD-10 converter translates any of them directly.
What did the 209.00-209.79 block classify?
The block classified 209 neuroendocrine tumors with 56 codes in the final ICD-9-CM release. It sat under Neoplasms (140–239) in the legacy hierarchy.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
