These are running notes on relevant tables for diagnosis mapping. Not yet updated w.r.t. milestone:heron-cedarbluff-update.

IMO Docs

See also: IMO Problem (IT) User Manual.pdf attached to message:

  • From: Russ Waitman <rwaitman@…>
    Subject: Fwd: IMO documentation....
    Date: Wed, 26 Sep 2012 13:10:35 +0000 (09/26/2012 08:10:35 AM)

Older Notes

Our first alpha source is the PAT_ENC_DX table where we are pulling in the ICD9_CODE column (epic_i2b2_transform.sql starting at line 175 and ticket:176). We plan to revisit (#273) and bring in the DX_ID column as well or do more thinking as that's more of the internal Epic cross walk key:

Here are tables that contain DX_ID or mentions EDGwith some notes "TABLE_NAME" "COLUMN_NAME" Notes

  • "AP_CLAIM_DX" "DX_ID" not relevant
  • "AP_PROC_ASSOC_DX" "DX_ID" nothing in it
  • "CASE_DX" "DX_ID" nothing in it
  • "CHG_REVIEW_DX" "DX_ID" nothing in it
  • "CLARITY_EDG" "DX_ID" good stuff
  • "CL_EDG_OT" "DX_ID" stuff Appears to keep track of when concepts were loaded in from IMO.
  • "CL_SSI_DX" "DX_ID" stuff SSI_ID is the primary key and related to smart sets
  • "EDG_CODE_MAPPING" "DX_ID" nothing
  • "EDG_MPI_ID" "DX_ID" nothing
  • "EDG_MAP" stuff but referencing the CID community ID
  • "EDG_SYNONYMS" "DX_ID" small stuff only 189 records and fewer synonyms
  • "HPF_ADMIT_DIAG" "DX_ID" nothing
  • "HSP_ACCT_DX_LIST" "DX_ID" nothing
  • "HSP_ADMIT_DIAG" "DX_ID" good stuff seems to be another source specifically of admission diagnoses
  • "HSP_DISCH_DIAG" "DX_ID" nothing
  • "HSP_TX_DIAG" "DX_ID" nothing
  • "MEDICAL_HX" "DX_ID" good stuff medical history contact
  • "ORDER_DX_MED" "DX_ID" ok stuff diagnoses associated with a subset of medication orders that may require a diagnoses
  • "ORDER_DX_PROC" "DX_ID" ok stuff diagnoses associated with a subset of procedure orders that may require a diagnoses
  • "OR_CASE_DX_CODE" "DX_ID" nothing
  • "PAT_ENC_DX" "DX_ID" good stuff what we imported initially
  • "PEND_ACTION" "DX_ID" every DX_ID is null.
  • "PROBLEM_CONCEPT" "DX_ID" nothing
  • "PROBLEM_LIST" "DX_ID" good stuff
  • "REFERRAL_DX" "DX_ID" stuff this may be good info on referrals.
  • "RESIDENT_SUMMARY" "DX_ID" nothing
  • "SMARTSET_DX" "DX_ID" stuff seems to be the intersection of smart sets and diagnoses
  • "TX_DIAG" "DX_ID" nothing

The thing we would like to figure out is how Epic and IMO interact to provide greater detail on diagnoses: supposedly IMO is supplementing basic ICD9 coding with SNOMED concepts. If you look at the PAT_ENC_DX many of the ICD9_CODE fields have codes with a character supplementing the ICD9. What does this mean? Where is that extra codification described in the database?

Here are some examples:

  • DX_ID 163431 is ICD9 code 784.0AD which is some specialization of a "headache"
  • DX_ID 163436 is 625.9H, a specialization of "unspecified symptom associated with female genital organs"
  • DX_ID 5385 is 462, "acute pharyngitis" or sore throat

Answer: In CLARITY_EDG, we can see these subspecializations and they map to DX_IMO_ID and DX_ICD9_IMO_IDs but I don't see a snomed code anywhere.

For example, the first DX_ID 163431 maps to "PAIN FACE" as opposed to just headache. 163436 is "PAIN IN PELVIS". For both, the DX_IMO_ID and DX_ICD9_IMO_IDs are identical. There is also a DX_GROUP which may be a useful hierarchy

Basic statistics from CLARITY_EDG:

Last modified 8 years ago Last modified on Apr 29, 2013 3:23:42 PM