Billable / Specific Code
ICD-10-CM T71.20 is the diagnosis code for Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause. This code falls under the section "Other and unspecified effects of external causes" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where T71.20 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, T71.20 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
T71.20 is the ICD-10-CM diagnosis code for "Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of T71.20 is T71.2 ("Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air"). T71.20 provides a more specific classification within this category.
T71.20 is located in Section T66-T78 — "Other and unspecified effects of external causes" within Chapter 19 of the ICD-10-CM Tabular List.
Use T71.20 when the patients documented diagnosis matches "Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Asphyxiation due to systemic oxygen deficiency due to low oxygen content in ambient air due to unspecified cause is T71.20.
Yes, T71.20 can be used as a primary diagnosis code since it is billable and specific.
T71.20 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, T71.20 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.