ICD-10-CM Tabular Index · Chapter 19 · FY 2026 S00–T88
Injury, poisoning and certain other consequences of external causes (S00–T88) ICD-10-CM
Chapter 19 of the ICD-10-CM classification spans codes S00–T88 and contains 54,261 diagnosis codes for injury, poisoning and certain other consequences of external causes, of which 41,142 are billable. The chapter is organized into 22 sections listed below, each linking to its code ranges and individual codes.
✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
22
Sections
54,261
Diagnosis Codes
41,142
Billable Codes
S00–T88
Code Range
Chapter Coding Notes
Note: Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code Use additional code to identify any retained foreign body, if applicable (Z18.-)
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About Chapter 19
ICD-10-CM Chapter 19 (S00–T88) covers codes related to injuries, poisoning, and various effects caused by external factors. These codes document conditions from physical injuries like fractures and burns to poisonings and adverse effects of medical treatment.
This chapter captures a wide range of acute medical situations caused by external events or substances. It includes detailed classification of injuries such as wounds, fractures, dislocations, sprains, and burns. It also covers poisoning by various drugs, medications, chemicals, and biological substances, as well as complications from treatments or medical procedures. The codes help healthcare providers accurately record the nature and extent of harm caused by accidents, intentional harm, or exposures. For medical coders, Chapter 19 requires attention to the specific type, location, and circumstance of the injury or poisoning to ensure precise documentation for patient care and reporting.
Questions About This Page
How many codes are in the S00-T88 range?
The S00-T88 range contains 54,261 ICD-10-CM diagnosis codes in FY 2026. 41,142 of them are billable, and the rest are category headers that organize the chapter.
What conditions does S00-T88 cover?
The range covers injury, poisoning and certain other consequences of external causes. The sections listed above break it into groups of related conditions, and each one links to its own page with the full code list.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
injuries of ear
injuries of eye
injuries of face [any part]
injuries of gum
injuries of jaw
injuries of oral cavity
injuries of palate
injuries of periocular area
injuries of scalp
injuries of temporomandibular joint area
injuries of tongue
injuries of tooth
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
for any associated infection
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
injuries of nape
injuries of supraclavicular region
injuries of throat
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
injuries of breast
injuries of chest (wall)
injuries of interscapular area
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
injuries to the abdominal wall
injuries to the anus
injuries to the buttock
injuries to the external genitalia
injuries to the flank
injuries to the groin
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
injuries of axilla
injuries of scapular region
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code, if known, for foreign body entering into or through a natural orifice W44
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
foreign body accidentally left in operation wound T81.5
foreign body in penetrating wound - See open wound by body region
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
hypothermia and other effects of reduced temperature T68T69
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
adverse effect of correct substance properly administered
poisoning by overdose of substance
poisoning by wrong substance given or taken in error
underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed
Code First
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.
, for adverse effects, the nature of the adverse effect, such as:
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code(s) to specify:
manifestations of poisoning
underdosing or failure in dosage during medical and surgical care Y63.6Y63.8Y63.9
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
toxic reaction to local anesthesia in pregnancy O29.3
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
abuse and dependence of psychoactive substances F10F19
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code(s):
for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents J60J70
personal history of foreign body fully removed Z87.821
to identify any retained foreign body, if applicable Z18
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
contact with and suspected exposure to toxic substances Z77
When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code for adverse effect, if applicable, to identify drug T36T50
code(s) to identify the specified condition resulting from the complication
code to identify devices involved and details of circumstances Y62Y82
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
any encounters with medical care for postprocedural conditions in which no complications are present, such as:
