From 3bf56220103f63d07bdbef464055260aae54549b Mon Sep 17 00:00:00 2001
From: Nora <nora_rocks@agentmail.to>
Date: Thu, 2 Jul 2026 21:07:12 -0600
Subject: [PATCH] docs(sp33): update reference docs to CO_TXIX (per HCPF 837P
 Companion Guide)

docs/reference/837p.md line 48: the CO Medicaid trading-partner line
was still saying 'SKCO0 (sender) <-> COHCPF (receiver)'. The HCPF
837P Companion Guide (June 2025 - Version 2.5) requires
NM1*PR NM109 = CO_TXIX; SKCO0 causes Gainwell to reject the SET
('2010BB NM109 must equal CO_TXIX or CO_BHA').

docs/reference/co-medicaid.md line 118 + the Trading Partner table at
the top: same fix, with a pointer to the SP33 spec for the
root-cause story.

No code changes. Pure doc fix to match what the source now emits
(PayerConfig.co_medicaid().payer_id = 'CO_TXIX').
---
 docs/reference/837p.md        |  2 +-
 docs/reference/co-medicaid.md | 11 +++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/docs/reference/837p.md b/docs/reference/837p.md
index 6bd0a99..b813648 100644
--- a/docs/reference/837p.md
+++ b/docs/reference/837p.md
@@ -45,7 +45,7 @@ full walker.
 
 ## CO Medicaid specifics
 
-- Trading partner: `SKCO0` (sender) ↔ `COHCPF` (receiver) on `NM1*PR` / `NM1*40`
+- Trading partners: `COMEDASSISTPROG` (NM1*40 NM109, 1000B receiver) and `CO_TXIX` (NM1*PR NM109, 2010BB payer). See `docs/goodclaim.x12` for a canonical example and the HCPF 837P Companion Guide for the full segment table.
 - `CLM05` is a composite of three components: place of service, facility code
   qualifier, and frequency code (in that order)
   - `CLM05-1` = place of service (any valid CMS POS code)
diff --git a/docs/reference/co-medicaid.md b/docs/reference/co-medicaid.md
index fc8dd26..4d77b69 100644
--- a/docs/reference/co-medicaid.md
+++ b/docs/reference/co-medicaid.md
@@ -9,11 +9,14 @@ Financing (HCPF) requires.
 
 | Role | 837P | 835 |
 |---|---|---|
-| Sender | `SKCO0` | (varies; usually the clearinghouse) |
-| Receiver | `COHCPF` | (varies) |
+| Sender (submitter, `NM1*41`) | `Dzinesco` (TPID `11525703`) | (varies; usually the clearinghouse) |
+| Receiver (`NM1*40`) | `COMEDASSISTPROG` | (varies) |
+| Payer (`NM1*PR`) | `CO_TXIX` (per HCPF 837P Companion Guide) | (varies) |
 
 These appear in the `NM1*PR` (payer) and `NM1*40` (receiver) segments of
-the 837P file.
+the 837P file. The legacy codes `SKCO0` / `COHCPF` are no longer
+accepted by Gainwell (HCPF error: "2010BB NM109 must equal CO_TXIX or
+CO_BHA"); see [SP33](../superpowers/specs/2026-07-02-cyclone-co-txix-payer-fix-design.md).
 
 ## dzinesco's TPID (clearinghouse identity)
 
@@ -115,7 +118,7 @@ ls -la "./var/sftp/staging/CO XIX/PROD/coxix_prod_11525703/ToHPE/"
 
 ### 837P (claims)
 
-- `NM1*PR N104 = "SKCO0"` (COHCPF)
+- `NM1*PR NM108 = "PI"`, `NM1*PR NM109 = "CO_TXIX"` (per HCPF 837P Companion Guide, June 2025 — Version 2.5). dzinesco submits against this code under dzinesco TPID `11525703`. The legacy trading-partner ID `SKCO0` is no longer accepted as the payer identifier.
 
 ### 835 (remittance)