Current RMA Instruments:

Changes from Previous Instruments:

SOP Bulletin 153

ICD Coding:

• ICD-9-CM Codes: 781.1
• ICD-10-AM Codes: R43.8

This SOP covers the permanent total loss of all smell sensation occurring from both nostrils. The SOP applies to loss of smell due to lesions of: the sensory epithelium in the top of the nasopharynx; the olfactory (1^st cranial) nerves; and, the olfactory neural pathways in the brain.

Is specific diagnostic evidence required to apply the SOP? – Yes.

This diagnosis should be based on ENT surgical specialist opinion.

Are there sub-factors that require specific information? – No.

Additional diagnoses covered by SOP

• Complete, permanent loss of smell

Conditions excluded from SOP

• Partial loss of smell
• Temporary loss of smell

Unconfirmed diagnosis

If, after applying the above information, you are unable to confirm the diagnosis, you should then:

1. seek medical officer advice about further investigation, or;
2. generate a diagnostic report, or;
3. re-encode the condition, if appropriate.

The following may be useful in establishing the diagnosis:

• Report from ENT surgeon.