ICD-10-CM category
T70: Effects of air pressure and water pressure
Codes under T70 (Effects of air pressure and water pressure). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| T70.0 | Otitic barotrauma | — |
| T70.0 | Otitic barotrauma | — |
| T70.0XXA | Otitic barotrauma, initial encounter | ✓ |
| T70.0XXA | Otitic barotrauma, initial encounter | ✓ |
| T70.0XXD | Otitic barotrauma, subsequent encounter | ✓ |
| T70.0XXD | Otitic barotrauma, subsequent encounter | ✓ |
| T70.0XXS | Otitic barotrauma, sequela | ✓ |
| T70.0XXS | Otitic barotrauma, sequela | ✓ |
| T70.1 | Sinus barotrauma | — |
| T70.1 | Sinus barotrauma | — |
| T70.1XXA | Sinus barotrauma, initial encounter | ✓ |
| T70.1XXA | Sinus barotrauma, initial encounter | ✓ |
| T70.1XXD | Sinus barotrauma, subsequent encounter | ✓ |
| T70.1XXD | Sinus barotrauma, subsequent encounter | ✓ |
| T70.1XXS | Sinus barotrauma, sequela | ✓ |
| T70.1XXS | Sinus barotrauma, sequela | ✓ |
| T70.2 | Other and unspecified effects of high altitude | — |
| T70.2 | Other and unspecified effects of high altitude | — |
| T70.3 | Caisson disease [decompression sickness] | — |
| T70.3 | Caisson disease [decompression sickness] | — |
| T70.3XXA | Caisson disease [decompression sickness], initial encounter | ✓ |
| T70.3XXA | Caisson disease [decompression sickness], initial encounter | ✓ |
| T70.3XXD | Caisson disease [decompression sickness], subsequent encounter | ✓ |
| T70.3XXD | Caisson disease [decompression sickness], subsequent encounter | ✓ |
| T70.3XXS | Caisson disease [decompression sickness], sequela | ✓ |
| T70.3XXS | Caisson disease [decompression sickness], sequela | ✓ |
| T70.4 | Effects of high-pressure fluids | — |
| T70.4 | Effects of high-pressure fluids | — |
| T70.4XXA | Effects of high-pressure fluids, initial encounter | ✓ |
| T70.4XXA | Effects of high-pressure fluids, initial encounter | ✓ |
| T70.4XXD | Effects of high-pressure fluids, subsequent encounter | ✓ |
| T70.4XXD | Effects of high-pressure fluids, subsequent encounter | ✓ |
| T70.4XXS | Effects of high-pressure fluids, sequela | ✓ |
| T70.4XXS | Effects of high-pressure fluids, sequela | ✓ |
| T70.8 | Other effects of air pressure and water pressure | — |
| T70.8 | Other effects of air pressure and water pressure | — |
| T70.8XXA | Other effects of air pressure and water pressure, initial encounter | ✓ |
| T70.8XXA | Other effects of air pressure and water pressure, initial encounter | ✓ |
| T70.8XXD | Other effects of air pressure and water pressure, subsequent encounter | ✓ |
| T70.8XXD | Other effects of air pressure and water pressure, subsequent encounter | ✓ |
| T70.8XXS | Other effects of air pressure and water pressure, sequela | ✓ |
| T70.8XXS | Other effects of air pressure and water pressure, sequela | ✓ |
| T70.9 | Effect of air pressure and water pressure, unspecified | — |
| T70.9 | Effect of air pressure and water pressure, unspecified | — |
| T70.9XXA | Effect of air pressure and water pressure, unspecified, initial encounter | ✓ |
| T70.9XXA | Effect of air pressure and water pressure, unspecified, initial encounter | ✓ |
| T70.9XXD | Effect of air pressure and water pressure, unspecified, subsequent encounter | ✓ |
| T70.9XXD | Effect of air pressure and water pressure, unspecified, subsequent encounter | ✓ |
| T70.9XXS | Effect of air pressure and water pressure, unspecified, sequela | ✓ |
| T70.9XXS | Effect of air pressure and water pressure, unspecified, sequela | ✓ |
| T70.20 | Unspecified effects of high altitude | — |
| T70.20 | Unspecified effects of high altitude | — |
| T70.20XA | Unspecified effects of high altitude, initial encounter | ✓ |
| T70.20XA | Unspecified effects of high altitude, initial encounter | ✓ |
| T70.20XD | Unspecified effects of high altitude, subsequent encounter | ✓ |
| T70.20XD | Unspecified effects of high altitude, subsequent encounter | ✓ |
| T70.20XS | Unspecified effects of high altitude, sequela | ✓ |
| T70.20XS | Unspecified effects of high altitude, sequela | ✓ |
| T70.29 | Other effects of high altitude | — |
| T70.29 | Other effects of high altitude | — |
| T70.29XA | Other effects of high altitude, initial encounter | ✓ |
| T70.29XA | Other effects of high altitude, initial encounter | ✓ |
| T70.29XD | Other effects of high altitude, subsequent encounter | ✓ |
| T70.29XD | Other effects of high altitude, subsequent encounter | ✓ |
| T70.29XS | Other effects of high altitude, sequela | ✓ |
| T70.29XS | Other effects of high altitude, sequela | ✓ |
Frequently asked questions
What is ICD-10-CM code T70?
T70 is an ICD-10-CM category covering Effects of air pressure and water pressure. It contains 66 more specific diagnosis codes, 48 of which are billable.
Is T70 a billable code?
No — T70 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example T70.0 — Otitic barotrauma). 48 of the 66 codes under T70 are billable.
What codes fall under T70?
T70 includes T70.0, T70.0, T70.0XXA, T70.0XXA, T70.0XXD, plus 61 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free