2023 ICD-10-CM Diagnosis Code C16

Malignant neoplasm of stomach

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • C16 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM C16 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of C16 - other international versions of ICD-10 C16 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code to identify:
  • alcohol abuse and dependence (
    ICD-10-CM Diagnosis Code F10
    • F10 Alcohol related disorders
      • F10.1 Alcohol abuse
        • F10.10 …… uncomplicated
        • F10.11 …… in remission
        • F10.12 Alcohol abuse with intoxication
          • F10.120 Alcohol abuse with intoxication, uncomplicate...
          • F10.121 …… delirium
          • F10.129 …… unspecified
        • F10.13 Alcohol abuse, with withdrawal
          • F10.130 Alcohol abuse with withdrawal, uncomplicated
          • F10.131 Alcohol abuse with withdrawal delirium
          • F10.132 Alcohol abuse with withdrawal with perceptual...
          • F10.139 Alcohol abuse with withdrawal, unspecified
        • F10.14 Alcohol abuse with alcohol-induced mood disor...
        • F10.15 Alcohol abuse with alcohol-induced psychotic ...
          • F10.150 Alcohol abuse with alcohol-induced psychotic ...
          • F10.151 Alcohol abuse with alcohol-induced psychotic ...
          • F10.159 Alcohol abuse with alcohol-induced psychotic ...
        • F10.18 Alcohol abuse with other alcohol-induced diso...
          • F10.180 Alcohol abuse with alcohol-induced anxiety di...
          • F10.181 Alcohol abuse with alcohol-induced sexual dys...
          • F10.182 Alcohol abuse with alcohol-induced sleep diso...
          • F10.188 Alcohol abuse with other alcohol-induced diso...
        • F10.19 Alcohol abuse with unspecified alcohol-induce...
      • F10.2 Alcohol dependence
        • F10.20 …… uncomplicated
        • F10.21 …… in remission
        • F10.22 Alcohol dependence with intoxication
          • F10.220 Alcohol dependence with intoxication, uncompl...
          • F10.221 Alcohol dependence with intoxication delirium...
          • F10.229 Alcohol dependence with intoxication, unspeci...
        • F10.23 Alcohol dependence with withdrawal
          • F10.230 Alcohol dependence with withdrawal, uncomplic...
          • F10.231 …… delirium
          • F10.232 Alcohol dependence with withdrawal with perce...
          • F10.239 Alcohol dependence with withdrawal, unspecifi...
        • F10.24 Alcohol dependence with alcohol-induced mood ...
        • F10.25 Alcohol dependence with alcohol-induced psych...
          • F10.250 Alcohol dependence with alcohol-induced psych...
          • F10.251 Alcohol dependence with alcohol-induced psych...
          • F10.259 Alcohol dependence with alcohol-induced psych...
        • F10.26 Alcohol dependence with alcohol-induced persi...
        • F10.27 Alcohol dependence with alcohol-induced persi...
        • F10.28 Alcohol dependence with other alcohol-induced...
          • F10.280 Alcohol dependence with alcohol-induced anxie...
          • F10.281 Alcohol dependence with alcohol-induced sexua...
          • F10.282 Alcohol dependence with alcohol-induced sleep...
          • F10.288 Alcohol dependence with other alcohol-induced...
        • F10.29 Alcohol dependence with unspecified alcohol-i...
      • F10.9 Alcohol use, unspecified
        • F10.90 …… uncomplicated
        • F10.91 …… in remission
        • F10.92 Alcohol use, unspecified with intoxication
          • F10.920 Alcohol use, unspecified with intoxication, u...
          • F10.921 Alcohol use, unspecified with intoxication de...
          • F10.929 Alcohol use, unspecified with intoxication, u...
        • F10.93 Alcohol use, unspecified with withdrawal
          • F10.930 Alcohol use, unspecified with withdrawal, unc...
          • F10.931 Alcohol use, unspecified with withdrawal deli...
          • F10.932 Alcohol use, unspecified with withdrawal with...
          • F10.939 Alcohol use, unspecified with withdrawal, uns...
        • F10.94 Alcohol use, unspecified with alcohol-induced...
        • F10.95 Alcohol use, unspecified with alcohol-induced...
          • F10.950 Alcohol use, unspecified with alcohol-induced...
          • F10.951 Alcohol use, unspecified with alcohol-induced...
          • F10.959 Alcohol use, unspecified with alcohol-induced...
        • F10.96 Alcohol use, unspecified with alcohol-induced...
        • F10.97 Alcohol use, unspecified with alcohol-induced...
        • F10.98 Alcohol use, unspecified with other alcohol-i...
          • F10.980 Alcohol use, unspecified with alcohol-induced...
          • F10.981 Alcohol use, unspecified with alcohol-induced...
          • F10.982 Alcohol use, unspecified with alcohol-induced...
          • F10.988 Alcohol use, unspecified with other alcohol-i...
        • F10.99 Alcohol use, unspecified with unspecified alc...
    F10.-
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (C16) and the excluded code together.
  • malignant carcinoid tumor of the stomach (
    ICD-10-CM Diagnosis Code C7A.092

    Malignant carcinoid tumor of the stomach

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    C7A.092
    )
The following code(s) above C16 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C16:
  • C00-D49
    2023 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C15-C26
    2023 ICD-10-CM Range C15-C26

    Malignant neoplasms of digestive organs

    Type 1 Excludes
    • Kaposi's sarcoma of gastrointestinal sites (C46.4)
    Type 2 Excludes
    • gastrointestinal stromal tumors (C49.A-)
    Malignant neoplasms of digestive organs
Clinical Information
  • A primary or metastatic malignant neoplasm involving the stomach.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to C16:
  • Applicable To: Z85.028
    ICD-10-CM Diagnosis Code Z85.028

    Personal history of other malignant neoplasm of stomach

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
    Applicable To
    • Conditions classifiable to C16
ICD-10-CM Codes Adjacent To C16
C14 Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx
C14.0 Malignant neoplasm of pharynx, unspecified
C14.2 Malignant neoplasm of Waldeyer's ring
C14.8 Malignant neoplasm of overlapping sites of lip, oral cavity and pharynx
C15 Malignant neoplasm of esophagus
C15.3 Malignant neoplasm of upper third of esophagus
C15.4 Malignant neoplasm of middle third of esophagus
C15.5 Malignant neoplasm of lower third of esophagus
C15.8 Malignant neoplasm of overlapping sites of esophagus
C15.9 Malignant neoplasm of esophagus, unspecified
C16 Malignant neoplasm of stomach
C16.0 Malignant neoplasm of cardia
C16.1 Malignant neoplasm of fundus of stomach
C16.2 Malignant neoplasm of body of stomach
C16.3 Malignant neoplasm of pyloric antrum
C16.4 Malignant neoplasm of pylorus
C16.5 Malignant neoplasm of lesser curvature of stomach, unspecified
C16.6 Malignant neoplasm of greater curvature of stomach, unspecified
C16.8 Malignant neoplasm of overlapping sites of stomach
C16.9 Malignant neoplasm of stomach, unspecified
C17 Malignant neoplasm of small intestine

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.