CPT CODES MODIFIERS
Corro
Internal review
Definition
100

What is E1399?

E1399 is a Miscellaneous durable medical equipment 

It is utilized for items that do not have a more specific code assigned to them, including accessories for oxygen delivery devices and other medical supplies. This code serves as a general classification for medical equipment that lacks detailed designated codes, allowing for billing in cases where no specific code exists.

100

What should go on the " TAG"

Member / DEP code, CPT CODE 

EX: 00 E0601 E0562

100

If you are uncertain about an internal review who should you ask ?

Marion, Veronica or Liset

100

What is a RX?

Prescription

200
What is E0601?

Continuous Positive Airway Pressure

200

After we receive a denial or approval from our medical consultant what field should be filled out ?

APPROVAL/ DENIED FIELD 

200

I received a prescription for an over-the-counter shoulder brace I can internally review and approve for the DX on file. Patient had shoulder surgery on 09/1/2025


TRUE / FALSE

False, 

plan does not cover over the counter items 

200

PPO 

Preferred Provider Organization

300
What is E0562

Heated Humidifier

300

What should be mentioned on the comment section when sending to review ?

pre/ post/ urgent 

CPT SENT TO REVIEW 

DOS/ DATE RANGE 

additional comments to help call reps that are reviewing corro


300

I receive a hearing aid claim I can do an internal review if I have a ___________. 

RX on file. 
300

Before sending to review where should we look for the CPT definition?


HINT: we should also check if there is a UM

WGS

400

If an item is Rented (RR) how long do we pay for this item ?

Rent to Purchase price 

10 mo.

400
Medical Consultant denied surgery as not medically necessary, I can adjust claim and deny with not covered. The EOB is a response to the request


True / Falso

True.
400

AHI LEVELS?

MINIMAL

MILD

MODERATE

SEVERE

LESS THAN 5 MINIMAL

5-15 MILD

16-30 MODERATE

OVER 30 SEVERE

400

What does CGM stand for ?

Continuous glucose monitoring

500

When we receive a E139 claim how should we handle?

-Pull paper claim and identify the item 

-Is this payable under the plan

- Does this need review ? 

-Pend for medical records if we need to review

-Deny if it is a plan exclusion.

- Add message with item description and reason for review or denial

500

Ex- Spouse is calling to see the determination of her daughters claim/ review. She is frustrated because it is taking very long, she is expressing she need an update on this request. I do not want to make her more upset so I will give her the determination of the review. She is clearly aware that it is pending and the answer is in the corro notes. 


TRUE/ FALSE

FALSE, if ex-spouse is not on the plan we cannot give her this information unless there is a ____ form on file.

500

What Chronic diagnosis are okay to allow a MILD AHI level?

5-15

Chronic obstructive pulmonary disease 

Heart Disease 

Diabetes

Kidney Failure 

500

What does DME stand for ?

Durable Medical Equipment