T20.01 vs T20.011D
T20.01 (Burn of unspecified degree of ear [any part, except ear drum]) compared with T20.011D (Burn of unspecified degree of right ear [any part, except ear drum], subsequent encounter), from the official CMS tabular data.
Summary
These codes represent different levels of the same hierarchy: T20.01 is the non-billable header that contains T20.011D, so only T20.011D (or a sibling) is reported.
Registry fact- What is different?
Title wording and billing status.The titles share “Burn of unspecified degree of”; T20.01 says “ear [any part, except ear drum]” where T20.011D says “right ear [any part, except ear drum], subsequent encounter”. T20.01 is a non-billable header; T20.011D is billable.
Registry fact
- Can these codes be reported together?
Not as a pair.T20.01 is the non-billable header that contains T20.011D. A header is not reported on a claim, so the choice is T20.011D or a sibling that matches the documentation.
Registry fact
- Is there an Excludes1 relationship?
None.Neither entry carries an Excludes1 note that names the other code.
Official rule
- Is there an Excludes2 relationship?
None.Neither entry carries an Excludes2 note that names the other code. T20.01 carries 4 Excludes2 notes and T20.011D carries 4 Excludes2 notes covering other codes; the side-by-side table quotes them.
Official rule
- Is one more specific?
Yes.T20.011D is a subdivision of T20.01 in the tabular hierarchy, so it is the more specific of the two.
Registry fact
- Is one a parent or header code?
Yes.T20.01 is the non-billable header that contains T20.011D. A header stands for the whole family beneath it and is not reported on a claim.
Registry fact
- Are there sequencing instructions?
None.Neither entry carries a Code First or Use Additional Code note that names the other.
Official rule
- Are there other coding relationships?
None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.
MedCoder-derived
Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels
Can these codes be reported together?
Not as a pair — T20.01 is not reportable. T20.01 is the non-billable category that contains T20.011D.
A header stands for the whole family of codes beneath it and is not reported on a claim, so the choice is T20.011D or a sibling that matches the documentation. No Excludes1/Excludes2 relationship exists between these codes in the official tabular list.
Official guidance behind these answers
Section I.B.2 — Level of Detail in Coding · applies to: T20.01 and T20.011D
Diagnosis codes are to be used and reported at their highest number of characters available and to the highest level of specificity documented in the medical record. ICD-10-CM diagnosis codes are composed of codes with 3, 4, 5, 6 or 7 characters. Codes with three characters are included in ICD-10-CM as the heading of a category of codes that may be further subdivided by the use of fourth and/or fifth characters and/or sixth characters, which provide greater detail. A three-character code is to be used only if it is not further subdivided. A code is invalid if it has not been coded to the full number of characters required for that code, including the 7th character, if applicable.
ICD-10-CM Official Guidelines FY2026
Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum
Side by side
| T20.01Burn of unspecified degree of ear [any part, except ear drum] | T20.011DBurn of unspecified degree of right ear [any part, except ear drum], subsequent encounter | |
|---|---|---|
| Billing status | Non-billable header Report instead: T20.011A, T20.011D, T20.011S, T20.012A, T20.012D | Billable |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Burn of unspecified degree of ear [any part, except ear drum] is a non-billable ICD-10-CM category code (T20.01). | Burn of unspecified degree of right ear [any part, except ear drum], subsequent encounter is a billable ICD-10-CM diagnosis code (T20.011D). |
| 7th character | The appropriate 7th character is to be added to each code from category T20 | The appropriate 7th character is to be added to each code from category T20 |
| Includes | 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] | 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] |
| Excludes2 | burn of ear drum (T28.41-) burn and corrosion of ear drum (T28.41, T28.91) burn and corrosion of eye and adnexa (T26.-) burn and corrosion of mouth and pharynx (T28.0) | burn of ear drum (T28.41-) burn and corrosion of ear drum (T28.41, T28.91) burn and corrosion of eye and adnexa (T26.-) burn and corrosion of mouth and pharynx (T28.0) |
| Use additional code | external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) code from category T31 or T32 to identify extent of body surface involved | external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92) code from category T31 or T32 to identify extent of body surface involved |
Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.
Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources