2021 ICD-10-CM Diagnosis Code T65.91XA

Toxic effect of unspecified substance, accidental (unintentional), initial encounter

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • T65.91XA is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Toxic effect of unsp substance, accidental, init
  • The 2021 edition of ICD-10-CM T65.91XA became effective on October 1, 2020.
  • This is the American ICD-10-CM version of T65.91XA - other international versions of ICD-10 T65.91XA may differ.
The following code(s) above T65.91XA 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 T65.91XA:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    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
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • T51-T65
    2021 ICD-10-CM Range T51-T65

    Toxic effects of substances chiefly nonmedicinal as to source

    Note
    • 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.
    Type 1 Excludes
    • contact with and (suspected) exposure to toxic substances (Z77.-)
    Use Additional
    • code(s):
    • for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
    • personal history of foreign body fully removed (Z87.821)
    • to identify any retained foreign body, if applicable (Z18.-)
    Toxic effects of substances chiefly nonmedicinal as to source
  • T65.91
    ICD-10-CM Diagnosis Code T65.91

    Toxic effect of unspecified substance, accidental (unintentional)

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Poisoning NOS
    Toxic effect of unspecified substance, accidental (unintentional)
Approximate Synonyms
  • Bilateral acute chemical conjunctivitis
  • Chemical burn of abdominal wall
  • Chemical burn of back of left hand
  • Chemical burn of back of right hand
  • Chemical burn of breast
  • Chemical burn of buttock
  • Chemical burn of cervix
  • Chemical burn of cheek
  • Chemical burn of chest wall
  • Chemical burn of chin
  • Chemical burn of esophagus
  • Chemical burn of face
  • Chemical burn of female genitalia
  • Chemical burn of forehead
  • Chemical burn of gi tract
  • Chemical burn of groin
  • Chemical burn of head
  • Chemical burn of internal organ
  • Chemical burn of larynx
  • Chemical burn of larynx, trachea and lung
  • Chemical burn of left ankle
  • Chemical burn of left axilla
  • Chemical burn of left conjunctival sac
  • Chemical burn of left cornea
  • Chemical burn of left ear
  • Chemical burn of left ear drum
  • Chemical burn of left elbow
  • Chemical burn of left eye
  • Chemical burn of left eye with globe rupture
  • Chemical burn of left eyelid
  • Chemical burn of left foot
  • Chemical burn of left forearm
  • Chemical burn of left hand
  • Chemical burn of left knee
  • Chemical burn of left lower leg
  • Chemical burn of left palm
  • Chemical burn of left periocular area
  • Chemical burn of left scapular region
  • Chemical burn of left shoulder
  • Chemical burn of left thigh
  • Chemical burn of left thumb
  • Chemical burn of left toe
  • Chemical burn of left upper arm
  • Chemical burn of left wrist
  • Chemical burn of lip
  • Chemical burn of low back
  • Chemical burn of male genitalia
  • Chemical burn of mouth
  • Chemical burn of multiple left fingers excluding thumb
  • Chemical burn of multiple left fingers including thumb
  • Chemical burn of multiple right fingers excluding thumb
  • Chemical burn of multiple right fingers including thumb
  • Chemical burn of multiple sites of face, head, or neck
  • Chemical burn of multiple sites of left ankle and foot
  • Chemical burn of multiple sites of left leg except ankle and foot
  • Chemical burn of multiple sites of left shoulder and arm except wrist and hand
  • Chemical burn of multiple sites of left wrist and hand
  • Chemical burn of multiple sites of right ankle and foot
  • Chemical burn of multiple sites of right leg except ankle and foot
  • Chemical burn of multiple sites of right shoulder and arm except wrist and hand
  • Chemical burn of multiple sites of right wrist and hand
  • Chemical burn of neck
  • Chemical burn of nose
  • Chemical burn of pharynx
  • Chemical burn of posterior thorax
  • Chemical burn of respiratory tract
  • Chemical burn of right ankle
  • Chemical burn of right axilla
  • Chemical burn of right conjunctival sac
  • Chemical burn of right cornea
  • Chemical burn of right ear
  • Chemical burn of right ear drum
  • Chemical burn of right elbow
  • Chemical burn of right eye
  • Chemical burn of right eye with globe rupture
  • Chemical burn of right eyelid
  • Chemical burn of right foot
  • Chemical burn of right forearm
  • Chemical burn of right hand
  • Chemical burn of right knee
  • Chemical burn of right lower leg
  • Chemical burn of right palm
  • Chemical burn of right periocular area
  • Chemical burn of right scapular region
  • Chemical burn of right shoulder
  • Chemical burn of right thigh
  • Chemical burn of right thumb
  • Chemical burn of right toe
  • Chemical burn of right upper arm
  • Chemical burn of right wrist
  • Chemical burn of scalp
  • Chemical burn of single left finger
  • Chemical burn of single right finger
  • Chemical burn of trachea
  • Chemical burn of trunk
  • Chemical burn of uterus
  • Chemical burn of vagina
  • First degree chemical burn of back of right hand
  • First degree chemical burn of breast
  • First degree chemical burn of buttock
  • First degree chemical burn of cheek
  • First degree chemical burn of chest wall
  • First degree chemical burn of chin
  • First degree chemical burn of face
  • First degree chemical burn of female genitalia
  • First degree chemical burn of forehead
  • First degree chemical burn of groin
  • First degree chemical burn of head
  • First degree chemical burn of left ankle
  • First degree chemical burn of left axilla
  • First degree chemical burn of left ear
  • First degree chemical burn of left elbow
  • First degree chemical burn of left foot
  • First degree chemical burn of left forearm
  • First degree chemical burn of left hand
  • First degree chemical burn of left knee
  • First degree chemical burn of left lower leg
  • First degree chemical burn of left palm
  • First degree chemical burn of left scapular region
  • First degree chemical burn of left shoulder
  • First degree chemical burn of left thigh
  • First degree chemical burn of left thumb
  • First degree chemical burn of left toe
  • First degree chemical burn of left upper arm
  • First degree chemical burn of left wrist
  • First degree chemical burn of lip
  • First degree chemical burn of low back
  • First degree chemical burn of male genitalia
  • First degree chemical burn of multiple left fingers excluding thumb
  • First degree chemical burn of multiple left fingers including thumb
  • First degree chemical burn of multiple right fingers excluding thumb
  • First degree chemical burn of multiple right fingers including thumb
  • First degree chemical burn of multiple sites of face, head or neck
  • First degree chemical burn of multiple sites of face, head, or neck
  • First degree chemical burn of multiple sites of left ankle and foot
  • First degree chemical burn of multiple sites of left leg except ankle and foot
  • First degree chemical burn of multiple sites of left shoulder and arm except wrist and hand
  • First degree chemical burn of multiple sites of left wrist and hand
  • First degree chemical burn of multiple sites of right ankle and foot
  • First degree chemical burn of multiple sites of right leg except ankle and foot
  • First degree chemical burn of multiple sites of right shoulder and arm except wrist and hand
  • First degree chemical burn of multiple sites of right wrist and hand
  • First degree chemical burn of neck
  • First degree chemical burn of nose
  • First degree chemical burn of posterior thorax
  • First degree chemical burn of right ankle
  • First degree chemical burn of right axilla
  • First degree chemical burn of right ear
  • First degree chemical burn of right elbow
  • First degree chemical burn of right foot
  • First degree chemical burn of right forearm
  • First degree chemical burn of right hand
  • First degree chemical burn of right knee
  • First degree chemical burn of right lower leg
  • First degree chemical burn of right palm
  • First degree chemical burn of right scapular region
  • First degree chemical burn of right shoulder
  • First degree chemical burn of right thigh
  • First degree chemical burn of right thumb
  • First degree chemical burn of right toe
  • First degree chemical burn of right upper arm
  • First degree chemical burn of right wrist
  • First degree chemical burn of scalp
  • First degree chemical burn of single left finger
  • First degree chemical burn of single right finger
  • First degree chemical burn of trunk
  • Ingestion of toxic substance
  • Left acute chemical conjunctivitis
  • Polyneuropathy (multiple nerve disorder), toxic
  • Right acute chemical conjunctivitis
  • Second degree chemical burn of abdominal wall
  • Second degree chemical burn of back of left hand
  • Second degree chemical burn of back of right hand
  • Second degree chemical burn of breast
  • Second degree chemical burn of buttock
  • Second degree chemical burn of cheek
  • Second degree chemical burn of chest wall
  • Second degree chemical burn of chin
  • Second degree chemical burn of face
  • Second degree chemical burn of female genitalia
  • Second degree chemical burn of forehead
  • Second degree chemical burn of groin
  • Second degree chemical burn of head
  • Second degree chemical burn of left ankle
  • Second degree chemical burn of left axilla
  • Second degree chemical burn of left ear
  • Second degree chemical burn of left elbow
  • Second degree chemical burn of left foot
  • Second degree chemical burn of left forearm
  • Second degree chemical burn of left hand
  • Second degree chemical burn of left knee
  • Second degree chemical burn of left lower leg
  • Second degree chemical burn of left palm
  • Second degree chemical burn of left scapular region
  • Second degree chemical burn of left shoulder
  • Second degree chemical burn of left thigh
  • Second degree chemical burn of left thumb
  • Second degree chemical burn of left toe
  • Second degree chemical burn of left upper arm
  • Second degree chemical burn of left wrist
  • Second degree chemical burn of lip
  • Second degree chemical burn of low back
  • Second degree chemical burn of male genitalia
  • Second degree chemical burn of multiple left fingers, excluding thumb
  • Second degree chemical burn of multiple left fingers, including thumb
  • Second degree chemical burn of multiple right fingers, excluding thumb
  • Second degree chemical burn of multiple right fingers, including thumb
  • Second degree chemical burn of multiple sites of face, head, or neck
  • Second degree chemical burn of multiple sites of left ankle and foot
  • Second degree chemical burn of multiple sites of left leg, except ankle and foot
  • Second degree chemical burn of multiple sites of left shoulder and arm, except wrist and hand
  • Second degree chemical burn of multiple sites of left wrist and hand
  • Second degree chemical burn of multiple sites of right ankle and foot
  • Second degree chemical burn of multiple sites of right leg, except ankle and foot
  • Second degree chemical burn of multiple sites of right shoulder and arm, except wrist and hand
  • Second degree chemical burn of multiple sites of right wrist and hand
  • Second degree chemical burn of neck
  • Second degree chemical burn of nose
  • Second degree chemical burn of posterior thorax
  • Second degree chemical burn of right ankle
  • Second degree chemical burn of right axilla
  • Second degree chemical burn of right ear
  • Second degree chemical burn of right elbow
  • Second degree chemical burn of right foot
  • Second degree chemical burn of right forearm
  • Second degree chemical burn of right hand
  • Second degree chemical burn of right knee
  • Second degree chemical burn of right lower leg
  • Second degree chemical burn of right palm
  • Second degree chemical burn of right scapular region
  • Second degree chemical burn of right shoulder
  • Second degree chemical burn of right thigh
  • Second degree chemical burn of right thumb
  • Second degree chemical burn of right toe
  • Second degree chemical burn of right upper arm
  • Second degree chemical burn of right wrist
  • Second degree chemical burn of scalp
  • Second degree chemical burn of single left finger
  • Second degree chemical burn of single right finger
  • Second degree chemical burn of trunk
  • Third degree chemical burn of abdominal wall
  • Third degree chemical burn of back of left hand
  • Third degree chemical burn of back of right hand
  • Third degree chemical burn of breast
  • Third degree chemical burn of buttock
  • Third degree chemical burn of cheek
  • Third degree chemical burn of chest wall
  • Third degree chemical burn of chin
  • Third degree chemical burn of face
  • Third degree chemical burn of female genitalia
  • Third degree chemical burn of forehead
  • Third degree chemical burn of groin
  • Third degree chemical burn of head
  • Third degree chemical burn of left ankle
  • Third degree chemical burn of left axilla
  • Third degree chemical burn of left ear
  • Third degree chemical burn of left elbow
  • Third degree chemical burn of left foot
  • Third degree chemical burn of left forearm
  • Third degree chemical burn of left hand
  • Third degree chemical burn of left knee
  • Third degree chemical burn of left lower leg
  • Third degree chemical burn of left palm
  • Third degree chemical burn of left scapular region
  • Third degree chemical burn of left shoulder
  • Third degree chemical burn of left thigh
  • Third degree chemical burn of left thumb
  • Third degree chemical burn of left toe
  • Third degree chemical burn of left upper arm
  • Third degree chemical burn of left wrist
  • Third degree chemical burn of lip
  • Third degree chemical burn of low back
  • Third degree chemical burn of male genitalia
  • Third degree chemical burn of multiple left fingers excluding thumb
  • Third degree chemical burn of multiple left fingers including thumb
  • Third degree chemical burn of multiple right fingers excluding thumb
  • Third degree chemical burn of multiple right fingers including thumb
  • Third degree chemical burn of multiple sites of face head or neck
  • Third degree chemical burn of multiple sites of left ankle and foot
  • Third degree chemical burn of multiple sites of left leg excluding ankle and foot
  • Third degree chemical burn of multiple sites of left leg, except ankle and foot
  • Third degree chemical burn of multiple sites of left shoulder and arm excluding wrist and hand
  • Third degree chemical burn of multiple sites of left shoulder and arm, except wrist and hand
  • Third degree chemical burn of multiple sites of left wrist and hand
  • Third degree chemical burn of multiple sites of right ankle and foot
  • Third degree chemical burn of multiple sites of right leg excluding ankle and foot
  • Third degree chemical burn of multiple sites of right leg, except ankle and foot
  • Third degree chemical burn of multiple sites of right shoulder and arm, except wrist and hand
  • Third degree chemical burn of multiple sites of right shoulder excluding wrist and hand
  • Third degree chemical burn of multiple sites of right wrist and hand
  • Third degree chemical burn of neck
  • Third degree chemical burn of nose
  • Third degree chemical burn of posterior thorax
  • Third degree chemical burn of right ankle
  • Third degree chemical burn of right axilla
  • Third degree chemical burn of right ear
  • Third degree chemical burn of right elbow
  • Third degree chemical burn of right foot
  • Third degree chemical burn of right forearm
  • Third degree chemical burn of right hand
  • Third degree chemical burn of right knee
  • Third degree chemical burn of right lower leg
  • Third degree chemical burn of right palm
  • Third degree chemical burn of right scapular region
  • Third degree chemical burn of right shoulder
  • Third degree chemical burn of right thigh
  • Third degree chemical burn of right thumb
  • Third degree chemical burn of right toe
  • Third degree chemical burn of right upper arm
  • Third degree chemical burn of right wrist
  • Third degree chemical burn of scalp
  • Third degree chemical burn of single left finger
  • Third degree chemical burn of single right finger
  • Third degree chemical burn of trunk
  • Toxic effect of chiefly nonmedicinal substance
  • Toxic effect of nonmedicinal substance
  • Toxic polyneuropathy
ICD-10-CM T65.91XA is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 917 Poisoning and toxic effects of drugs with mcc
  • 918 Poisoning and toxic effects of drugs without mcc

Convert T65.91XA to ICD-9-CM

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
ICD-10-CM Codes Adjacent To T65.91XA
T65.893 Toxic effect of other specified substances, assault
T65.893A …… initial encounter
T65.893D …… subsequent encounter
T65.893S …… sequela
T65.894 Toxic effect of other specified substances, undetermined
T65.894A …… initial encounter
T65.894D …… subsequent encounter
T65.894S …… sequela
T65.9 Toxic effect of unspecified substance
T65.91 Toxic effect of unspecified substance, accidental (unintentional)
T65.91XA …… initial encounter
T65.91XD …… subsequent encounter
T65.91XS …… sequela
T65.92 Toxic effect of unspecified substance, intentional self-harm
T65.92XA …… initial encounter
T65.92XD …… subsequent encounter
T65.92XS …… sequela
T65.93 Toxic effect of unspecified substance, assault
T65.93XA …… initial encounter
T65.93XD …… subsequent encounter
T65.93XS …… sequela

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