T71.131UpcomingCategory · further specificity required

Asphyxiation due to being trapped in bed linens, accidental

Chapters 19 · Inherited instructions

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

T66-T78 · Inherited instructions

Code also

, if applicable, place of occurrence, such as:
highway rest stop (Y92.523)
school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
service areas as the place of occurrence of the external cause (Y92.52-)
single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
transport vehicle as the place of occurrence of the external cause (Y92.81-)

T71 · Inherited instructions

Excludes 1

acute respiratory distress (syndrome) (J80)
anoxia due to high altitude (T70.2)
asphyxia NOS (R09.01)
asphyxia from carbon monoxide (T58.-)
asphyxia from inhalation of food or foreign body (T17.-)
asphyxia from other gases, fumes and vapors (T59.-)
respiratory distress (syndrome) in newborn (P22.-)

A — initial encounter

D — subsequent encounter

S — sequela

Excludes 2 · 2

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

More specific codes

T71.131AAsphyxiation due to being trapped in bed linens, accidental, initial encounter T71.131DAsphyxiation due to being trapped in bed linens, accidental, subsequent encounter T71.131SAsphyxiation due to being trapped in bed linens, accidental, sequela

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.

Official coding guidelines → · CMS ↗

First observed · 2015-10-01

Code history

Latest recorded change · FY2026 · April

ChangedUnchanged

FY2026 · April

Effective from 2026-04-01

Inherited rules changed

Asphyxiation due to being trapped in bed linens, accidental

Category — select a more specific code

CDC/NCHS · FY2026 · April

All editions (19)

All editions	Effective from	Code history
FY2016	2015-10-01	First observed
FY2017	2016-10-01	No tabular change
FY2018	2017-10-01	No tabular change
FY2019	2018-10-01	No tabular change
FY2020	2019-10-01	No tabular change
FY2020 · April	2020-04-01	No tabular change
FY2021	2020-10-01	No tabular change
FY2021 · 01-01	2021-01-01	No tabular change
FY2022	2021-10-01	No tabular change
FY2022 · 04-01	2022-04-01	No tabular change
FY2023	2022-10-01	No tabular change
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	No tabular change
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	Inherited rules changed
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	Inherited rules changed
FY2027	2026-10-01	No tabular change

Code-level instructions

Inclusion terms

Asphyxiation due to being trapped in bed linens NOS

Inherited instructions

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

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
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

T66-T78 · Other and unspecified effects of external causes (T66-T78)

Code also

, if applicable, place of occurrence, such as:
highway rest stop (Y92.523)
school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
service areas as the place of occurrence of the external cause (Y92.52-)
single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
transport vehicle as the place of occurrence of the external cause (Y92.81-)

T71 · Asphyxiation

Inclusion terms

Mechanical suffocation
Traumatic suffocation

Excludes 1

acute respiratory distress (syndrome) (J80)
anoxia due to high altitude (T70.2)
asphyxia NOS (R09.01)
asphyxia from carbon monoxide (T58.-)
asphyxia from inhalation of food or foreign body (T17.-)
asphyxia from other gases, fumes and vapors (T59.-)
respiratory distress (syndrome) in newborn (P22.-)

Seventh character

The appropriate 7th character is to be added to each code from category T71

A — initial encounter

D — subsequent encounter

S — sequela

T71.1 · Asphyxiation due to mechanical threat to breathing

Inclusion terms

Suffocation due to mechanical threat to breathing

More specific codes

T71.131AAsphyxiation due to being trapped in bed linens, accidental, initial encounterBillable / specific T71.131DAsphyxiation due to being trapped in bed linens, accidental, subsequent encounterBillable / specific T71.131SAsphyxiation due to being trapped in bed linens, accidental, sequelaBillable / specific

Official index references (1)

Asphyxia, asphyxiation(by) (1)

Asphyxia, asphyxiation(by) › traumatic › due to › mechanical threat to breathing(accidental) › trapped in bed clothesDisease index

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
T71.132	Asphyxiation due to being trapped in bed linens, intentional self-harm	Category · further specificity required
T71.133	Asphyxiation due to being trapped in bed linens, assault	Category · further specificity required
T71.134	Asphyxiation due to being trapped in bed linens, undetermined	Category · further specificity required

Official titles and instructions are preserved in their source language. Official sources ↗

T71.131UpcomingCategory · further specificity required

Asphyxiation due to being trapped in bed linens, accidental

Chapters 19 · Inherited instructions

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

T66-T78 · Inherited instructions

Code also

, if applicable, place of occurrence, such as:
highway rest stop (Y92.523)
school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
service areas as the place of occurrence of the external cause (Y92.52-)
single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
transport vehicle as the place of occurrence of the external cause (Y92.81-)

T71 · Inherited instructions

Excludes 1

acute respiratory distress (syndrome) (J80)
anoxia due to high altitude (T70.2)
asphyxia NOS (R09.01)
asphyxia from carbon monoxide (T58.-)
asphyxia from inhalation of food or foreign body (T17.-)
asphyxia from other gases, fumes and vapors (T59.-)
respiratory distress (syndrome) in newborn (P22.-)

A — initial encounter

D — subsequent encounter

S — sequela

Excludes 2 · 2

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

More specific codes

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Official coding guidelines → · CMS ↗

First observed · 2015-10-01

Code history

Latest recorded change · FY2026 · April

ChangedUnchanged

FY2026 · April

Effective from 2026-04-01

Inherited rules changed

Asphyxiation due to being trapped in bed linens, accidental

Category — select a more specific code

CDC/NCHS · FY2026 · April

All editions (19)

All editions	Effective from	Code history
FY2016	2015-10-01	First observed
FY2017	2016-10-01	No tabular change
FY2018	2017-10-01	No tabular change
FY2019	2018-10-01	No tabular change
FY2020	2019-10-01	No tabular change
FY2020 · April	2020-04-01	No tabular change
FY2021	2020-10-01	No tabular change
FY2021 · 01-01	2021-01-01	No tabular change
FY2022	2021-10-01	No tabular change
FY2022 · 04-01	2022-04-01	No tabular change
FY2023	2022-10-01	No tabular change
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	No tabular change
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	Inherited rules changed
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	Inherited rules changed
FY2027	2026-10-01	No tabular change

Code-level instructions

Inclusion terms

Asphyxiation due to being trapped in bed linens NOS

Inherited instructions

Chapters 19 · Injury, poisoning and certain other consequences of external causes (S00-T88)

Excludes 2

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use additional code

code to identify any retained foreign body, if applicable (Z18.-)

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
The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

T66-T78 · Other and unspecified effects of external causes (T66-T78)

Code also

, if applicable, place of occurrence, such as:
highway rest stop (Y92.523)
school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
service areas as the place of occurrence of the external cause (Y92.52-)
single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
transport vehicle as the place of occurrence of the external cause (Y92.81-)

T71 · Asphyxiation

Inclusion terms

Mechanical suffocation
Traumatic suffocation

Excludes 1

acute respiratory distress (syndrome) (J80)
anoxia due to high altitude (T70.2)
asphyxia NOS (R09.01)
asphyxia from carbon monoxide (T58.-)
asphyxia from inhalation of food or foreign body (T17.-)
asphyxia from other gases, fumes and vapors (T59.-)
respiratory distress (syndrome) in newborn (P22.-)

Seventh character

The appropriate 7th character is to be added to each code from category T71

A — initial encounter

D — subsequent encounter

S — sequela

T71.1 · Asphyxiation due to mechanical threat to breathing

Inclusion terms

Suffocation due to mechanical threat to breathing

More specific codes

Official index references (1)

Asphyxia, asphyxiation(by) (1)

Asphyxia, asphyxiation(by) › traumatic › due to › mechanical threat to breathing(accidental) › trapped in bed clothesDisease index

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
T71.132	Asphyxiation due to being trapped in bed linens, intentional self-harm	Category · further specificity required
T71.133	Asphyxiation due to being trapped in bed linens, assault	Category · further specificity required
T71.134	Asphyxiation due to being trapped in bed linens, undetermined	Category · further specificity required

Official titles and instructions are preserved in their source language. Official sources ↗