2020 ICD-10-CM Diagnosis Code K27

Peptic ulcer, site unspecified

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • K27 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM K27 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K27 - other international versions of ICD-10 K27 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
        • F10.14 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
        • F10.92 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...
        • F10.94 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 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K27. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • peptic ulcer of newborn (
    ICD-10-CM Diagnosis Code P78.82

    Peptic ulcer of newborn

      2016 2017 2018 2019 2020 Billable/Specific Code Code on Newborn Record
    P78.82
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • gastroduodenal ulcer NOS
  • peptic ulcer NOS
The following code(s) above K27 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 K27:
  • K00-K95
    2020 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the digestive system
  • K20-K31
    2020 ICD-10-CM Range K20-K31

    Diseases of esophagus, stomach and duodenum

    Type 2 Excludes
    Diseases of esophagus, stomach and duodenum
Clinical Information
  • A break in the lining of the lower part of the esophagus, the stomach, or the upper part of the small intestine. Peptic ulcers form when cells on the surface of the lining become inflamed and die. They are usually caused by helicobacter pylori bacteria and by certain medicines, such as aspirin and other nonsteroidal anti-inflammatory drugs (nsaids). Peptic ulcers may be linked to cancer and other diseases.
  • A mucosal erosion that occurs in the stomach or duodenum. Symptoms include abdominal pain, nausea and vomiting, and bleeding.
  • A peptic ulcer is a sore in the lining of your stomach or your duodenum, the first part of your small intestine. A burning stomach pain is the most common symptom. The pain
    • may come and go for a few days or weeks
    • may bother you more when your stomach is empty
    • usually goes away after you eat
    peptic ulcers happen when the acids that help you digest food damage the walls of the stomach or duodenum. The most common cause is infection with a bacterium called helicobacter pylori. Another cause is the long-term use of nonsteroidal anti-inflammatory medicines (nsaids) such as aspirin and ibuprofen. Stress and spicy foods do not cause ulcers, but can make them worse. Peptic ulcers will get worse if not treated. Treatment may include medicines to block stomach acids or antibiotics to kill ulcer-causing bacteria. Not smoking and avoiding alcohol can help. Surgery may help for ulcers that don't heal.
  • Local defect produced by the sloughing of inflammatory necrotic tissue that occurs in the regions of the gastrointestinal tract which come into contact with gastric juice; occurs when there are defects in the mucosa barrier; common forms of peptic ulcers are associated with helicobacter pylori and the consumption of nonsteroidal antiinflammatory drugs.
  • Ulcer that occurs in the regions of the gastrointestinal tract which come into contact with gastric juice containing pepsin and gastric acid. It occurs when there are defects in the mucosa barrier. The common forms of peptic ulcers are associated with helicobacter pylori and the consumption of nonsteroidal anti-inflammatory drugs (nsaids).
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
Code annotations containing back-references to K27:
  • Type 1 Excludes: K25
    , K26
    , K63.3
    ICD-10-CM Diagnosis Code K25

    Gastric ulcer

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • erosion (acute) of stomach
    • pylorus ulcer (peptic)
    • stomach ulcer (peptic)
    Type 1 Excludes
    Use Additional
    • code to identify:
    • alcohol abuse and dependence (F10.-)
    ICD-10-CM Diagnosis Code K26

    Duodenal ulcer

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • erosion (acute) of duodenum
    • duodenum ulcer (peptic)
    • postpyloric ulcer (peptic)
    Type 1 Excludes
    Use Additional
    • code to identify:
    • alcohol abuse and dependence (F10.-)
    ICD-10-CM Diagnosis Code K63.3

    Ulcer of intestine

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Primary ulcer of small intestine
    Type 1 Excludes
    • duodenal ulcer (K26.-)
    • gastrointestinal ulcer (K28.-)
    • gastrojejunal ulcer (K28.-)
    • jejunal ulcer (K28.-)
    • peptic ulcer, site unspecified (K27.-)
    • ulcer of intestine with perforation (K63.1)
    • ulcer of anus or rectum (K62.6)
    • ulcerative colitis (K51.-)
ICD-10-CM Codes Adjacent To K27
K26 Duodenal ulcer
K26.0 Acute duodenal ulcer with hemorrhage
K26.1 Acute duodenal ulcer with perforation
K26.2 Acute duodenal ulcer with both hemorrhage and perforation
K26.3 Acute duodenal ulcer without hemorrhage or perforation
K26.4 Chronic or unspecified duodenal ulcer with hemorrhage
K26.5 Chronic or unspecified duodenal ulcer with perforation
K26.6 Chronic or unspecified duodenal ulcer with both hemorrhage and perforation
K26.7 Chronic duodenal ulcer without hemorrhage or perforation
K26.9 Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
K27 Peptic ulcer, site unspecified
K27.0 Acute peptic ulcer, site unspecified, with hemorrhage
K27.1 Acute peptic ulcer, site unspecified, with perforation
K27.2 Acute peptic ulcer, site unspecified, with both hemorrhage and perforation
K27.3 Acute peptic ulcer, site unspecified, without hemorrhage or perforation
K27.4 Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage
K27.5 Chronic or unspecified peptic ulcer, site unspecified, with perforation
K27.6 Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation
K27.7 Chronic peptic ulcer, site unspecified, without hemorrhage or perforation
K27.9 Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation
K28 Gastrojejunal ulcer

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